No, but quite possibly one of the all time best happened to a friend of mine. Friend bought an early '90s Ninja a couple years back and decided he wanted to learn to ride. Most of our friends and I HIGHLY encouraged Friend to take the MSF course but as is often the case, he (thought he) knew better than us, so he decided he'd learn putting around the neighborhood. Friend was actually doing OK, catching on pretty quickly, getting a bit better, actually riding like he had some sense. One day while on a little ride with some other friends, Friend went into a nice, easy low speed corner in a residential neighborhood. Well, Friend didn't see the CHEESEBURGER that someone had pitched out a car window.... I think you can see where this goes. Back tire meets cheeseburger, mid turn... Back tire slips... Friend takes a low speed washout. No one really hurt, other than the plastic, but still to this day I think his ego takes a bit of a sting anytime it's mentioned.