Dobby will do that sort of thing when he decides he needs a bath. Dunk his head into a bowl and splash all over the room. Try to dunk into the water pitcher he likes to sit on. Starts doing the shower eagle when he sees sister grab a glass of water while on her shoulder etc.
Of course if you try to spray him with a spray bottle he gets all offended. Since he's decided his shower cage is safe again we stuff him in that and he (after maybe short complaints) starts making his water noises and usually does the shower eagle everywhere and gets good and wet then just sits happily under the warm water till we ask him if he's done.