Who Decided That Throwing Ourselves Down The Stairs Was Fun, And Why Did Our Parents Agree?

Loading your video.

Sliding down the stairs seems to be one of those things that passes from generation to generation, even though it has never once been a good idea. For some reason we all decided that launching ourselves down a flight of stairs in a laundry basket, on a piece of cardboard, or on a pillow is super fun. I guess we all just ignore the bruises right?