I did something like that when I was a kid. Thankfully it was before consumer video and nobody wanted to waste film. I slammed face first into the ground off of a 4 ft tall ramp jump we built at the end of our street because I, for some freakin unknown reason, tapped the rear brake after my front wheel left the ramp but before my rear wheel left it. I mean SLAMMED into the pavement. Ever since I haven't been too keen on catching air.