This week's Slam Of The Week is one very good example of why you should never start spinning before you leave the ground when hitting rail features...

This guy put down a couple of alright tricks on this cannon rail before everything went so drastically downhill.

On his third attempt he spins 90 degrees before leaving the lip and catches his toe edge on the front of the rail, resulting in a super painful looking faceplant.

Ouch doesn't even cut it.