We always knew that Flaming Lips frontman Wayne Coyne was eccentric, but he's also a pretty bad packer. That, or he has an inconsiderate sense of humor when it comes to traveling. In news that has remained somewhat under the radar, until now, the singer showed up at the Will Rogers Airport in Oklahoma City last week with a grenade (or a replica of a grenade) on his person or in his luggage. It caused the airport to shut down and a horde of travelers to miss their flights. Needless to say, people were pissed!