My husband is home during pick up time. He sits out of sight and listens to the misbehaviour. The next time he sees dck, he sits them down and tells them he did not like their behaviour and it is not to happen again. The next time he is present at the offenders pick up and all it takes is a look from hubby and they stop. He is like Switzerland - neutral (as in changing of the guard) Heck, I stop my misbehaviour when I see that look LOL (most of the time)