One of the dogs (the one with the butt-nugget issues) likes to bark at me from time to time - it's a "pay attention to me/give me something" bark. When I've had enough, I tell him "GET IN THE SHOWER!", and he runs down into the basement, goes into the bathroom and steps into the shower. He then turns around, sticks his head out and wags his tail waiting for me to say "good boy!"
I'm not sure how or why that started, but it amuses me.