I noticed today as we were strapping our children in their car seats my neighbour leaving her driveway and all 3 of her kids were standing up on the seats. They are 7,4 and 2. The baby has a carseat as I have seen him in it before but he was standing up waving to me. What should I do? They were quick enough to come round when DS was standing on top of his slide and jumping up and down, and tell us off basically, but this is really bad and don't know what to do.