It's a Jeep thing.
Jeep Spotted With 10-Foot Skeleton In Back Seat: Ridin’ Spooky

Because spooky season is upon us, this is a video of a a Jeep spotted leaving a Wegmans supermarket with one of those 10-foot skeleton Halloween lawn decorations riding in the back. This is arguably the best use of one of those skeletons that I’ve seen. And, knowing the number of rabid Jeep fans that live around here, I assume I’ll see a lot of these this Halloween. Plus it’s a great excuse to not have to drive any friends around. Sorry, Mega Boner already called the backseat.

Thanks to Just A, who agrees it’s only a short matter of time until they give that skeleton a lance and people start Jeep jousting.