I sat my 4s on the roof of my car while putting my daughter in her car seat. We drove downthe road and heard something hit our trunk and my wife turned around and answered my "what the heck was that?!?!" with..."your phone!" Luckily I had bought an otterbox impact case because it rolled end over end down the highway. We were going about 50 mph and I expected it to be trashed....but only a minor chip on the bottom left that is invisible with the case on it....insane! Thanks Otterbox!