Player ignores ref

[Adam]

Rickref,
Coach never said we can't answer questions to his players. I would agree that we shouldn't be volunteering rules interpretations or clinics during a game, however. While I get a little miffed by the attitude I get from players, I'd never consider taking action against a kid for (quite probably) biting his tongue.
While the first "do you understand" was likely reflexive, the second was unnecessary. I guarantee he'll understand if you have to whack him on the ensuing throwin.
Footlocker, you asked how to handle it differently. Besides a T, I don't see any tools available for you, and I definitely think that's over and beyond reasonable (as you apparently do as well). I think you handled it well.