PS — I totally get what Madge is saying but I would worry that any kind of consequential language in this realm could backfire — it really feels like a lack of
control / power thing to me (which is I guess sometimes the root of bullying
behavior) but consequences could make him feel both more
powerful (he gets more attention from his request) AND more ashamed (about peeing etc.) I would re-inforce two things: 1) his own
control / power
over his own body (that means being totally ok with having an accident) AND 2) another person's right to privacy (he has no right to talk to another person about their own bathroom
behavior)