PVT Squeakems was a mouse featured in the Bill Murray movie: 'Scrooged.' Murray's character pretended to almost staple tiny antlers to his head. In real life, when the cameras weren't rolling, he actually DID. Squeakems went nuts and started killing everyone on set. This is a little known story. Thankfully, Santa and his Woodland Creature Commandos enlisted him in order to put his murderous tendencies to good use.