Do. Not. Fuck. With. Kiefer Sutherland. (Especially when he's on a fuzzy navel and Newport Lights bender.) Apparently designer Jack McCullough found that out the hard way earlier this week when he was on the receiving end of a Kiefer head-butt. Rumor is, Gentleman Jack wasn't much of a gentleman to Brooke Shields and Kief brained him with his brain-case; now KS is facing misdemeanor assault charges. In honor of Kiefer, we start your weekend off with a dull thud with The Greatest Head-Butts of All Time...

ZINEDINE ZIDANE VS. MARCO MATERAZZI

ASHER ROTH LOOKALIKE VS. RESTAURANT OWNER

BALD MORON VS. "VAGGIE"

JESUS VS. PHONE & THE POLICE

CADELL EVENS VS. CAMERA

GIRL VS. BOUNCER

FRENCH DUDE VS. OTHER FRENCH DUDE

DUDE IN BLACK SHIRT VS. FAT DUDE

J.R. BOLGER VS. BARBELL

JOCKEY VS. HORSE