40 Pieces Of “Common Knowledge” People Outside These Professions Don’t Know

Live Soundboard engineers. If everything goes right, no one knows you exist, but the second anything goes wrong it is immediately your fault. One of the most under appreciated jobs out there.

Not all railroad crossings are automatically closed by train approaching (usually some older ones but even brand new types when there is a severe fault), so there's always a small chance you might get hit. These cases are obviously a severe incident that will be investigated and someone will probably get punished, but it will unfortunately be too late for you. If you can, always slow down and look to both sides before you cross.

Those $25 t-shirts you buy online cost the company about $0.02 each. They'll buy a case of 500 shirts for about $10.

Most grocery stores make about 7¢ profit for every $100.00 spent on the "middle" of the store.

Most profit comes from the perimeter departments.

Reboot solves 80% of problems.

Working in delis where you get fresh sliced meat and cheese. A family owned grocery slicer is always more sanitary than a chain deli. Without fail.

Typically, family owned has two slicers, one for meat one for cheese. They always wipe them down between customers. Why? A . Business is slower B. They know all the customers C. Customer is really watching.

Chain grocery rarely wipe down the blade. It's all about the speed of service. It's POLICY to not wipe it down at most chains except on even numbered hours or at the half, even if you just sliced pastrami and are doing Turkey next. One place I worked it was every third hour. So gross. I had to quit.

Family owned is more pricey, better quality.

The manager is responsible for the horrible requirements on job descriptions, not the recruiter. We try our best to convince them they are ridiculous.

No decent to pro chef remembers recipes (except if it is mandatory or most likely their favorite) most good chefs learn techniques and skills which is far more useful than remembering how to make specific dishes, this of course does not include simple recipes like mashed potatoes and what not.

If a column fails then it's very likely the whole building fails.

IT here. 90% of our fixes come from Google. Even corporate systems can mostly be googled. Most of us have no particular training at the field level. Sure, we pick up tricks along the way, but we largely wing it. Help desk folks are even worse. They largely hire right off the street.

Most plants you buy in stores are not grown from seeds, but are multiplied by taking a cutting off of a mother plant.

It's not really a "professional secret" but more people should know; you can use the Inspector on any browser to change the text of anything on any website and have it look 100% genuine. Again not a secret but a lot of people don't know about this. It's noteworthy since a lot of people still will look for mismatched font or spacing or other tells that something has been photoshopped, but that is utterly meaningless. Can make screenshots that look exactly like a real post with 2 seconds of effort.

The overwhelming majority of governing in the US is done by literal amateurs - almost all city councils and school boards are volunteers (or get paid a few thousand stipend) and many state legislators don’t make anywhere near a full time salary.

Your local school board and city council hold a meeting each month. It’s 100% free and open to the public. Most are conducted in rooms full of empty chairs.

If you know or care who is president of the United States but do not know the name of your city or village council representative you are getting exactly the government you deserve.

The above mentioned government bodies will frequently look for volunteer citizens to sit on various types of advisory committees. If you’re are interested in how your city/town/school district/ etc. is governed I bet you could find a way to get involved.

I'm a lawyer and people CONSTANTLY argue with me about whether they "winner" in a lawsuit "have to" pay the other side's legal fees (in America, they usually don't). But people will straight up just say I'm wrong... like guys... it's my job. If the loser had to pay, I'd be rich asf. The fact that everyone pays their own fees is FREAKING WHY rich people can abuse the system.

That pretty much everything in a grocery store bakery comes frozen in a box.

Breathing isn't done the way most people think. Most people think they take a deep breath, and their lungs/chest cavity expands. It's the other way around. We use the muscles in and around our chest to expand our chest cavity, which creates a suction that draws air into our lungs.

Too much tension in those muscles makes them act like a corset and prevents you from breathing deeply. So most people who get stressed and can't breath need to get a real massage more frequently.

Stop using Q-tips to clean wax out of your ears. All you are doing is packing it further in and clogging your ear canals until the wax turns to a rock against your eardrum. Highly recommend using Debrox or some sweet oil and then flushing with warm water instead!

Sincerely,
A doctor

I’m an archaeologist, we got a find, I googled what it could be, that's what we wrote down… admittedly a specialist will confirm but there's a lot that we don’t know but hey that’s why we have specialists.

That the hearing implants my company makes do not make your ears work again. They work through vibration through bone conduction.

You're not saving energy/money if you turn off your AC in the summer. Houses are very good at keeping heat in, not letting it out. So when you finally turn your AC on, it's gonna take so long for your system to satisfy/get to the desired temperature that you might as well have kept it on all day. It'll also wear your system out faster because it'll be running for so long If you're really concerned about saving on your electric bills, just turn your AC up between 2-4 degrees higher than you normally would. Even 2 degrees can make a big difference.