Twice. I was 18 going through a intersection, my pops Honda 350 twin, car turned left in it and I hit the front end. :bang::bang: I flew over the car, bike underneath the car. The bike was stuck wide open under the car. I tried to get up but fell back down in pain. My shins were tore up, tore ligaments in 1 knee. Had no helmet on, head never touch anything, perfect. Sued that fucker. The 2nd I (21yr old) was coming down Ortega hwy(local 2 lane twisty that is know for its turns ect) I passed a car going to fast on the outside, drifted to the outside, my left bar hit the rock mountain and I was down. Oh did I say I had my brother on the back? :down::down: Dumb ass. We both rode the rest of the way down in a ambulance. Broken finger on me and other cuts, brothers knee hit the mountain too and jacked that up. That was a 1981 Honda 750 F. I loved that bike, bought it new. Now I ride the Dog to cruise and no more bullshit stuff. If I ever crash again, I am done.