Tonight on Jersey Shore, Pauly D and Vinny play a huge prank on The Situation. Vinny and Pauly decide to clean up the shared washroom, and can’t help but notice a toothbrush sitting on the counter.

“The bathroom is disgusting and there is this disgusting toothbrush on the counter,” says Pauly. “I’m getting all the nasty hair out of the clippers and used someone’s toothbrush. Anyone dumb enough to leave their toothbrush on this counter deserves it.”

Of course the toothbrush ends up being Mike’s, and he brushes his teeth in front of the guys. The guys end up laughing uncontrollably.

Vinny says, “Part of me feels bad, but then I’m like, ‘Yes! This is awesome!’”