Hair salon: Boss didn't like the way I cut hair. Put me on "probation." I was cutting a blond kid and that's hard hair to cut as it must be blended real well or it looks choppy. Boss flicked kid's hair and yelled "That looks like ****!" I could have died. He canned me not long after.
Boiler room: my fiance had just dumped me and my sales were off. Boss called me into his office to tell me I'd be fine, that I "just needed to get laid." I thanked him for his concern.
Hallmark: Boss had coworker tell me I was using too much toilet paper. Seriously.
I tripped over a stack of long giftwrap tubes that were placed haphazardly in the closet that served as our breakroom, coming down onto the concrete floor on one knee. Hurt like nothing I'd ever felt before, so much I couldn't even cuss which is a lot for me.
Knee blew up to grapefruit size, I went to doctor. Boss called me that night to ask me how I was (aka: did I file workmen's comp, I bet) and to tell me I needed to be more careful. I said "No Mark, you need to clean up your store."
Coyote Gift (same boss): I worked my butt off at this store and it seemed every time boss came in he caught me sitting down. Never mind I had just put up three shelves of crap, I was "sitting down on the job." Like my elderly coworker said "I had underwear older than him."
There were many jerks in between those but those are the standouts.
Forgot one.
Payless Drug: Boss was a Mexican dude who spoke little English and ate blood sausage. He had the vilest breath ever. A supervisor stuck a tomato plant on top of my cash register and walked off. Hey she was the supervisor, I let the plant stay. Well the plant fell over and got dirt all over and in my machine. Machine wouldn't work. I called over Bad Breath Boss and told him what happened and he asks me "Why did you put dirt in the machine?"