I thought it was falling backward. Daredevils I have respect for them. I saw your first gif, I upvoted it, I had just returned to imgflip. Keep the gifs coming! :)
I remember going up a 40-50 foot steep sandhill in a quad. Got to the top of the hill and the quad kept going up! Landed on top of me, I felt like I was in a bad road runner cartoon.