sounds like the restaurant where I used to work...

alas... I've no words of advice that'll be helpful, and I did nothing while I was treated poorly.. except ingratiate myself with the boss so I would eventually be (sort of) in charge of the others and could do no wrong and then I could treat them crappily, but it was a hollow victory ;)

Anyway... I feel your pain (virtually). Hope a better opportunity comes along soon.