Here's a sentence I never thought I'd have to write: An airborne sheep's head hit a concertgoer and fractured his skull at a show for metal band Mayhem in Norway on Thursday. Apparently, the group was carving up a dead sheep on stage when the animal's head flew off frontman Maniac's knife and struck Per Kristian Hagen. The 25-year-old fan — who filed involuntary assault and battery charges against the band — is expected to make a full recovery. The same can't be said for the sheep.