Stupid is as stupid does, people. What’s the #1 thing you never, EVER, bring to the airport? An incendiary device! DING! DING! DING! But if you’re Johnny Knoxville douchebaggery comes naturally. MSNBC gives the details of what happened:
Johnny Knoxville, star of the “Jackass” TV show and movies, was detained Thursday at Los Angeles International Airport for allegedly possessing an inert hand grenade in a carry-on bag, an airport official said.

Knoxville, 38, of Malibu, was going through passenger security screening when a Transportation Security Administration officer saw the image of a hand grenade in his carry-on bag, said Nancy Castles of Los Angeles World Airports.

Airport Police and the Los Angeles Police Department Bomb Squad were called, and it was determined the grenade had no explosives or firing pin, she said.

Knoxville whose real name is John Philip Clapp, told Airport Police the hand grenade was a prop from one of his photo shoots and that he had forgotten it was in his bag, Castles said.

I would normally say I hoped he got a full cavity search, but then again, he’d probably actually enjoy it, then do it again so he could get it on video.

Out shopping last month at Saks Fifth Avenue: