I work in food service (being vague for privacy) under a horrible, horrible owner. They are quite literally constantly degrading myself and the other employees for simple mistakes even to the point of some of my coworkings having entire breakdowns during work. I would quit but it's quite a small town (literally a few hundred people) and there really isn't much other employment.
Moreover, the owner has made overtly racist and sexist comments about the customers behind their backs. Again it is quite a small town and everyone knows one another, so these comments are often towards people I know. A few months ago I finally got sick of it and began writing EVERYTHING the owner said about our customers down with dates and times.
I finally prepared everything in an official sort of document. On monday, I called my boss and told them I quit (they were furious) and I shared the document on facebook. The thing is, because of the dates and times and it being a small town people could basically tell what was said about them ( I didn't intend this as I didn't want feelings to be hurt but it was unavoidable). The post got huge traction and 2 of my coworkers even supported it on FB and quit with me.
I live relatively close and the few times I've driven by this week it's been absolutely empty.