Rico says, even searching the Condé Nast collection, where the Gahan Wilson cartoons category contains nearly five hundred items, he still can't locate the cartoon, but it seems someone else remembers, too, from a comment in The New York Times:
This column reminded me of a very funny cartoon, by Gahan Wilson, I believe. It showed a men's room with a huge guy in lederhosen, holding soap and a towel. On the wall, this sign: Hans must wash employees before leaving.
Rico says you can buy the documentary about Wilson, called Born Dead, Still Weird, here.
Rico says you can buy the documentary about Wilson, called Born Dead, Still Weird, here.