Where if we don't pick the right book the world might end. Where he has opinions and we may not agree with those opinions- like his desire to bang on the fish tank. Sure, it's fake and it won't hurt the fish but it's a rule.
Until today it seemed like it was just a joke, he'd get up after a little whimper and head down and do a big smile. Today was the first day he was miserable about whatever the molehill was in the first place.