SEE IT AND BELIEVE IT VIDEO: Sheep Patiently Teaches Bull How To Head-Butt

No joke... watch as this sheep repeatedly and slowly charges this bull, stopping short just before the 'head butt,' hoping the bull figures it out. I've never seen anything like it.

VIRAL SENSATION: Video of a Slinky On A Treadmill Is So Stupid It’s Genius

HYSTERICAL VIDEO: More 2012 News Bloopers

CAUGHT ON TAPE: Bad Dog Gets Busted By Hidden Camera

My “Exclusive” Interview With The Bronx Zoo Cobra.