The Count feeds on the children of Sesame Street.
Even more outrageous is the belief among some fans that Count von Count is a bloodsucking Muppet vampirewho preys on the children of Sesame Street.
The number-obsessed vampire lures kids to his lair under the guise of teaching them math, so he can feed on their youth.
(According to this theory, the Count is why the children who hang out on Sesame Street are constantly replaced.)
Apparently, Sesame Street's adult residents are in on the Count's dastardly scheme too, because in the decades he's been on the show, they've never made an effort to stop him.