Part promotion for Hilarity for Charity (which funds Alzheimer's research) and part twisted look into the world of what could be, Funny or Die's newest offering postulates what would happen if Seth Rogen donated to charity -- which then earned him the right to be the "worst person in the world" for the rest of the year.

What follows is Rogan not picking up after his dog, repeatedly shooting his friends, making meth, doing drugs and playing Russian roulette with shady characters.

The clip stars the Robin to Rogen's Batman, David Krumholtz (whose face you'll recognize even if his name doesn't ring any bells), plus Max Greenfield, who plays Schmidt on 'New Girl,' and Bryan Cranston as Heisenberg from 'Breaking Bad.'

This year's Hilarity for Charity event takes place on April 25 in Hollywood.

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