almost a broken neck - double back flip 

I really don't see why people would be insulting other people's hobbies. If they have the chance and the guts to do something fun and exciting then don't ruin it for them by calling them a dumb fuck just because you don't have the guts to try it.

didnt quite get the distance

Not everyone Starts as a pro. Yeah It's a Dangerous thing to do but hey,, No Risk, No fun .