>>149995162
Him being some weird creature manically jumping around the room that Charlie and Pim are amused by is what makes the joke work. You think he's just silly flying all around erratically but turns out he's stealing stuff. If it was just a normal dude and he bumped into both Charlie/Pim all suspiciously and stole their wallet, watch, etc. then it's just a guy pickpocketing their stuff. There's no real twist to it.

Also here's the short since OP is gay and didn't post it: https://youtu.be/Z9VKazJ-2I8