yes sometimes though it does piss me off, like I was turning into my school parking lot in the morning when its usually full of traffic. As we're going into the lot, the car in front of my stops half way around the turn, I didnt realize till a little later that they werent just going really slow, they were stopped, so I slammed on the brakes and just nudged them a little, no harm done, but still, there was no one in front of them, just that some people like to spontaneously stop! :|