Would you have said anything? (Players asks to see mucked cards)

[4_2_it]

What you did was -EV. Remember, don't tap the tank. If you really felt the need to make a point, you should have waited until he tried to do it with your cards. Clearly, the kid didn't understand the rules and the dealer was not savvy enough to start mixing the cards for the next hand while pretending to not hear the kid's request.