33 Revenge Plans That Ended Up Hurting The Other Person Way More Than Intended

My high school art teacher was snappy and very rude. Let's call her Mrs. B. Mrs. B also had her very own clique of "talented" students. Basically, if she didn't like your art, she didn't like you. Such energy was directed towards my friends and me. I didn't take too kindly to this.

So, I joined her AP art class, which was a fast-track way to become one of her favorites. Now, Mrs. B had a habit of divulging all of her dirty laundry to her favorites because they were her 'friends'. She was telling minors things that no student/child should know about their teacher, like the details of her divorce or how she was involved with a married man.

I gathered all of these details from the last semester of my junior year of high school to the end of the 1st semester of my senior year. This was when I told my Spanish teacher, Mrs. J. Mrs. J didn't like Mrs. B, so the principal was obviously informed. By the end of the day every teacher, student, and faculty member were told one way or another. Mrs. B's reputation had been ruined and she had been forced to resign.

I have no regrets.

Not quite revenge but in third grade I was talking to a boy and thought he was cute but also annoying. I tossed some glitter up at his face, and some went in his eye. Yeah, really horrible thing to do and he was seriously hurt. I believed for years that glitter was tiny pieces of glass because of how it affected him and how everyone around us responded.

First, let me just say I was a very angry young man in high school. I'm no longer quite so angry. I'm not sure why, but this one kid seemed to have fun pushing people off the walk in the outdoor hallways in between periods. He'd wait until just before the bell rang and then push you right into a mud puddle. He got me twice. I noticed that this guy walked to school, like myself. We went in opposite directions, but I knew his neighborhood and I knew the path he'd have to take. I went on up ahead and found a shovel on a back porch. I waited for him to come around the corner and then I hit him right in the small of the back with the flat of the shovel. He went down to his knees and I kicked him so he was lying flat on the ground. I put the blade of the shovel on the back of his neck and told him if he did it again I'd cut off his head and throw it in the canal. He avoided me at school after that and I saw less and less of him until one day I realized I just didn't see him around at all anymore.

I'm not quite sure what I intended beyond getting him to stop messing with me, but I suspect I did way more than that.

Way less serious, but back in middle school me and this girl would always pull pranks on each other. The day before she splashed water on me, so I decided to get back at her. I found out that she really hates it when people talk about bugs and stuff during lunch. So I got 2 of my homies on board and sat near her and talked about bugs, frying them, eating them, etc; to get on her nerves.

Turns out she REALLY doesn't like them, and went outside and vomited a little. I apologized. She also didn't tell the teacher, cause we had a silent agreement that unless the prank got too bad we wouldn't tell on each other. Fun days.

There was a co-worker who bought a new car when gas prices were high and he constantly bragged about how much money he was saving and how great his gas mileage was. A co-worker decided to play a prank and each day he snuck out to the parking lot and secretly topped off his gas tank.

The daily bragging continued and after about two weeks we stopped secretly adding gas to his new car. Suddenly he stopped bragging about his gas mileage and how much money he was saving.

After another couple of weeks, we asked him for an update on the car. He told us he sold it because it was a piece of garbage and his gas mileage decreased drastically.

We never told him about the prank.

-- Update --
First off, for my European friends, gas and petrol are the same thing, so yes we adding petrol.
Many people have indicated that this prank was replicated in a series called Tacoma FD. We pulled this prank circa 2005 at an automotive design center with a large parking lot. It was a team effort to find the car in the massive parking lot each day, then have someone sneak out and top off the gas. The parking lot was huge, about 500 cars. We used a 5-gallon safety can which had a metal spout that fit nicely into filler tube of the gas tank, and I would say we added less than 1-gallon per day. The safety can could also be stored in the trunk of my car without it sloshing or smelling up the car with gas fumes.

If anyone has a link to the TV show where this happened, I would like to share it with my old friends. Thank you for the great discussion.

I wasn’t cool in junior high. Evan was in most of my classes and he wasn’t cool either, but apparently he thought that I was lame enough that I would be a viable target. He would mock me at any opportunity (and there were plenty, I was a weird kid). I remember he liked to lick his hand and smear it over my locker. Disgusting.

So now for the revenge. Evan had a reputation for being a nerd, and he liked to brag about how smart he was, how he was a math wiz, etc. For each class, all of the student grades were posted for on a tack board. Each student had a ‘unique number’ assigned to them. To find your grade you first had to find your number, and the grade for each exam and class project was posted next to it. I realized at some point that my unique number had my birth month and day in the middle, with random numbers before and after. A friend confirmed that their number also included their birthday. Evan made the mistake of mentioning one day that his birthday was on St. Patrick’s day. You can probably see where this is going.

One day in math class we got one of our exams back. Evan saw my grade and started laughing at me, calling me stupid for ‘only’ getting an B+. He wanted to know, how did I do so badly on a test that was so easy? I asked him what he got on the test.

“A+”, he told me smugly.

“Yeah?” I said, “Let’s see it then.”

But he wouldn’t show me his paper. He had conveniently already sorted it away in a folder.
I decided to see what his grade was for myself. I marched over to the grade board, and searched for the student number with 317 in it (St. Patrick’s day). I found it. And next to the number— D’s, F’s, more D’s.

I announced to the class that you can just use someone’s birthday to figure out their number and grade. I locked eyes with Evan and began listing each of his grades out loud like the horrible s**t that I am. I still remember the look on his face. Abject horror which quickly morphed into a broken, hopeless expression. And then he started crying and left the classroom.

This kid wasn’t cool, he wasn’t attractive. All he had was his intelligence— or the lie about it, anyway. Now he had nothing, and on top of that he cried openly in class. The kid never lived it down (not as long as I knew him anyway, which truthfully was only another year or so). I only got a stern talking-to for what I had done, but Evan got ridiculed for the rest of the time he went to that school. I don’t think I realized the full scope of what I had done until I was older. We were both losers just trying to make it through junior high without too much emotional damage, and I had to nuke this kid over some snarky comment that didn’t really mean much of anything at the end of the day.

Girl at school kept telling her friends my sister was easy. I "accidentally" spilled chili on her new shirt. Turns out her gram had just died and they had went shopping for that shirt together like the week before, making it the last thing she ever gave her.

She was out of school for about a month for personal stuff...

And... Tbf, my sister was/is a complete easy woman.

We had one person in our group in University who was not pulling his weight. He would submit things translated from different languages that were not in English, he would submit them without any references and he would never attend meetings. Looking back he was probably just out of his means but it didn't feel like he was even trying.

My group decided, on a day he didn't come to class to (we assume) purposefully avoid a meeting we had planned for right after, to tell him we had had a very large test that day he had missed. We just sent some messages in the group chat saying "that was a hard test" and "does anyone know how much that was weighted? I know I failed."

One look at the course outline and you could see we had not had a test. He dropped the class the next day.

My brother is 7 years older than me (female). He was always way too rough and wild with me. One time when I was 6 and he was 13, we were playing cops and robbers. I was the cop and thought, “Now I’M the boss!” So I took that opportunity to put him in jail- which was in the basement- by Sparta kicking him square in the back from the top of the stairs.

He had to jump to catch himself so he didn’t break his neck. His foot hurt for several days but my mom told him to walk it off. Yeah… he broke his foot. I still feel bad about it.

My sister was being a j**k to me as a kid, so when I next gave her a glass of milk, I put some kernels of corn in it, thinking it would gross her out. It didn't.

It choked her.

Cut to me giving my kid sister the Heimlich, and apologizing for years after.

I put a fly in my little sisters rice when I was 10. She stared to cry because she *hates* bugs and is downright terrified of them. I felt so so bad watching her cry. To this day she won’t even eat rice anymore.

Edit: To be fair she did throw my diary in the toilet, but I probably deserved it because I was a little rascal.

This kid named Ben kept winning at stuff. He was smart with math. I was jealous because my parents really wanted me to be good at math and I had a very difficult time with it. He also got to be patrol captain and even though I applied I didn’t get to be one. I was a short kid, like third shortest in the class. It was elementary school so people care about that. So we had this exercise where we practiced compliments. I said to Ben “I like you because you make me feel tall!” He cried.

It was his birthday.

Sorry, Ben, I hope you don’t remember that.

Once in high school, my best friend lend the school book from me, because she wanted to copy the important pages and she couldn't find hers. After that she told me she gave it back to me and I just lost it somewhere. (She definitely did NOT) since it wasn't her problem, she didn't bother searching with me. (Spoiler: I never saw that book again)

Fast forward, exams coming up. It's like 3 weeks before and I don't have a book to learn with. I remembered I was still mad that she lost my book. Under pressure I took her book out of her backpack and took it home.At first I just wanted to copy the whole book and give it back without her noticing (again Spoiler: I did not)

We didn't really have a good relationship then, because she would get mad at me for days and talk to me when she didn't understand sth and I was sick of it.

To get to the point: She failed the exam.
(She started asking me about the book 3 days before the test, apparently she didn't notice it was missing for 3 whole weeks)

Still have mixed feelings about this and I kinda feel bad because I could have just bought a new one. She was kinda toxic at the end tho. ( they were like 40 Dollars or sth , = expensive ,but still).