I quit CHQ training during the sim (not having busted anything). I later got calls from TSA, SkyWest, and Pinnacle (the only other regionals to which I had applied). [edit: the resume I sent to these companies reflected my time at CHQ] I was totally upfront with my current (cargo) employer about what happened, and they not only didn't care, but were kind enough to check my PRIA paperwork and let me know that it simply said "resigned during training".

If you find yourself choosing between the door and the window, I recommend the door. Hope it doesn't come to that. Good luck.