Generally focusing on breed type, it's practical not to have any mutts "currently or future" in the flock. Unless your able to setup pens or large dividers to keep them totally separate. Just something to consider.
Well if you let him fire you, you can go to the employment office and get unemployment checks to cover your expenses till you can find something more suitable.
If you quit, you can't collect unemployment check. Think ahead to know where you stand as far as finances go.
I'm not sure if this...
I recently left my job because my manager was purposely causing problems with me and my co-workers. I told the owner about it and after a week he asked me to come back cause he demoted her and placed her as a floater for other locations.
Well all eggs have a time limit during incubation. So smelling and checking the shell periodically would avoid any accidents. That's what I would do if I can't see through the egg.