Yes, collisions with drivers exiting the pits may cause a problem at some point. I was practicing online earlier, i was just starting a hotlap, when someone exited the pits, he stayed right, but we collided. It was no-ones fault, you see them late because of the wall, and once you have committed to that first left hand curve (at least in the FZ50) there's no going back. Any corrections usually result in a slam into the right side barrier, or the guy coming out of the pits.