I like to consider myself a pretty tough guy who can withstand a fair amount of pain, but these guys in the following videos set the standard for tough and courageous.

The first video shows a guy walking on the sidewalk outside a convenience store when an out of control car rams him through the glass into the store...and he just gets up and walks away.

The second video shows a store clerk getting robbed at gunpoint...that is until one vicious left hook knocks the robber out for the count.