Oh geez stories I could tell about misbehaviour at the door! I instruct the misbehaviour dck's by telling them before pick up that they can not touch the door (opening and closing, running outside) and that they must listen to mom/dad and no crying. This works for a second and then just like DisneyPrincess said, they give the evil eye and nanana look. The parents don't want to discipline because THEY will feel bad having not seen them all day.
I told my dcb (31/2 yr old still in diapers) not to open/close the door in front of parent. I received a side glance from parent not happy I was instructing child not to do this. Excuse me, wind chill is -25 do you want to pay my heating bills?