It reminds me a little of Seinfeld's Kramer prepping food in his shower, but Wine X Magazine has a recipe for poaching salmon in your dishwasher. This odd HOWTO was written by Bob Blumer, author of the book Surreal Gourmet. From the recipe:
DO NOT ATTEMPT TO COOK A WHOLE FISH!
1 Place fish packets on the top rack.
2 Add dirty dishes and lemon-scented soap. This optional step is not recommended for novices. However, as long as the salmon's tightly sealed in its aluminum foil packet, it won't absorb any soapy taste or smell.
3 Set dishwasher to the "normal" cycle. Modern dishwashers have "economy" and "cool dry" settings, which are undesirable since they conserve heat. However, on the other end of the spectrum, the "pots and pans" setting tends to overcook the fish.
4 Run salmon through the entire wash-and-dry cycle -- approximately 50 minutes for most models.
5 When cycle's complete, take salmon out, discard foil, place one fillet on each plate and spoon a generous serving of dill sauce on top.