So, I let Firstborn pick out his latest set of toothbrushes while we were shopping. He went with a superhero theme. And yet, even though this was HIS idea, he still seems to get embarrassed when Daddy yells, "Hulk BRUSH!" while we're getting him ready for bed.
Strangely, though, he doesn't seem to mind when the Wolverine toothbrush says, "Gimme yer teeth, Bub. SNIKT!"