Riding my scooter down a road on a huge hill when I was 11 or 12, it wasn't exactly well-maintained. I went over a hole in the road and my scooter started wobbling, then went into a wheelie. I jumped off and started running behind it while holding the scooter in front of me, planning on turning to the grass, but I fell before I could jump. Skinned both knees up pretty bad.