A foot get screwed.

The paragliding goes bad. He get stuck in a tree + falls to the ground.

A failure that leads to another one..

Security cameras in Russia's recently-completed Lefortovo Tunnel captured some pretty wild high-speed car accidents. The 3.2 km tunnel appears rather cramped, but that doesn't stop any of these drivers from traveling at ridiculous speeds, nor has it prevented from being generally careless.