When the Devil Snuck into Heaven's Laundromat

Who uses heaven's laundromat, Harold?
Angels up in heaven.
What kinds of clothes do they wear?
Closed gowns.
What do they wear while their gowns are being cleaned?
Underwear and t-shirts...all different colors. Stripes only.
Who's that one in the middle?
Luther - the devil.
How...?
He snuck in.