My friend who works at the hospital was threatened by the tall slim blk cook of grind house this guy came from behind the counter got in his face. Y is this person still working there

This is something best handled by speaking to the person in charge of grindhouse or their corporate page if there is one. That's probably the best way to actually get a response pertaining to whatever events happened.

I agree with Ms. Foster

I seriously agree with that he needs to be fired ASAP

I don't know why are you asking that question.