Wow, my adult son did something like that last halloween.
He went to a party in a suit and tie, but took a couple of things in a paperbag.
Around 2 am, I get this phone call. Could I bring spare key to his car? OK, I figure he probably had too much to drink. The party is about 1/2 hour away.
I get there to find him standing in the street next to his locked car (its a convertible LOL) He is waving around a plastic chain saw.
The keys are in his pants pocket inside the trunk of the car.
He has on his sneakers, a pair of boxers and is covered in fake blood.