I worked in retail for a while, including during the Covid-19 Pandemic, so I have a lot of potential stories I could use here. However, I'll use one that I personally helped along karma in a mild way.
I happened to be working in Apparel, at Walmart, during the Pandemic. Naturally, I was wearing a mask as per mandated then. I was working on folding up pants in the men's department on a Jeans table - a random man comes up to me and literally tried to rip the mask off my face. Cue me dodging quickly via super-fast backwards step. Cue the man ending up hitting on of his ankles on the table.
This man tried to rip my mask off of my face four times in total. Keep in mind, I'm not a track-and-field person, but the women in my dad's side of the family can move pretty quickly, as in both his sisters were track stars with records in college and so is my cousin, so I can dodge most people quicker than most people can react. I just kept side-stepping while continuing to fold various pants using my quick-side-stepping ability that works in all directions. I didn't want to end up in a fight but didn't want this guy to rip off my mask.
I also knew exactly where the corners of this table was, so I could side-step each one perfectly in all direction. This man ended up hitting both of his shins and his ankles on the table each time he tried. This got him to half-crumbled over in extreme pain before I walked off to do more of my job. He didn't follow me.
He tried reporting me to management, (which I know because a manager confronted me with video about that later that week). I pointed out that I had been doing my job and was straightening up the pants before I moved over to another display to straighten up those jeans because they were messy. The manager took my word for it because this manager knew how quickly I could move, (as I had literally dodged items in the back when they feel before and not been hit once), and didn't question things. It was a plausible reason as all the clothing departments constantly had to be straighten up.
Random guy that randomly tried to pull off a small female Walmart employee's mask on repeat - you deserved that, and I hoped you learned not to try that on other women.