Roman doesn't understand jokes, but it doesn't understand pets, and so as non-soft as a skeleton is to pet, it will soak up the attention. Sans is pretty sure this behaviour is very closely tied to the stuff he got from the Ringmaster at the start of his most recent year. There is no practical purpose for it what so over, but it's pretty great to watch.

Sans grins more widely at the joke, though, and shrugs his shoulders.

"You know me. When I work, I do it doggedly."