Here's one from Rocko's Modern Life #2 (July 1994). Another story that could possibly work in the show.
When this came out it hasn't been established yet that Ed Bighead's boss is Mr. Dupette (he only made one appearance in season 1 as Rocko's boss). So here a white elephant named Donald Frump serves as Ed's boss.
Also note that his fridge has a different sign. In the show it reads "Chill Out", but int he comic it's Fridge-O-Dare.