It's a totally dangerous move, and could even cause serious injury or even fatal, if executed wrongly. I don't know why but i've been watching a lot of mountain biking videos recently, learning some of the bits on how to mountain trail, cycle better and get in the controls of your bike- and in of those many videos they showed some of the riders doing a backflip, in which, somehow, I think, I really wanna do it.
Looks pretty dangerous, right?
I'll put backflip as one of the stupid crazy things I wanna do in my life.
I know that if I flunked my way out of the backflip and ended up in a wheelchair, I could still do a backflip, nevertheless.