Mine was when I took a flying lesson as I went over the handlebars after hitting someone's homemade speed bump in the dark. You're flying and wondering what happened, and what's going to happen when you hit the road. Then you lay there, hoping nothing is broken. The pain sets in, later. It reminded me of a crash in my teen years, where a scooter rider suddenly turned in front of me, and we hit head on. I remember that flying sensation, too. My motorcycle and his scooter were totaled. Fortunately, with my more recent bicycle crash, the bike wasn't damaged. Damage occurred only to a camera I had hung around my neck, and to my ribs, and flesh on my knees and elbows.