I've been fired after receiving more money/promotion, I've been fired after 3 months and benefits have been activated, I've been fired within 3 months for vario

I've been fired after receiving more money/promotion, I've been fired after 3 months and benefits have been activated, I've been fired within 3 months for various reasons by sketchy and non-sketchy companies, one of which was stupid enough to actually keep me on longer than 3 months amd think they could just sever ties and not pay me out. There's no detail in the post, but the story is totally plausible. Companies suck and shouldn't be trusted.