Well, its happened to mine. Drivers side today bounced off my head. I look up thinking 'what was that' and just about the whole drivers side down. My 'fix' of the moment, lower the seat! Seriously, time to look into replacing/re-covering the top. Right now if I touch it, it'll get real messy real quick. Its about time for my car to act up, glad its something like this (instead of the electronics). (shhhhhhhhh)