You get 5 months to make 250 bucks in your 5th month, which covers your desk fees. If you dont, or you lose too much before the 5th month, then you are let go.
Although I only did the interview, I can tell you there's no real deposit for the branch I went to in Quebec, Canada, only a "training fee" of $300. I don't know if all branches charge that or not.
I was pretty much told that having a part time job is not a bad idea because most traders start with losses.
Sometimes I think getting a part time job is more difficult than getting a full time one.