I was in a store with my children when they were young (25 & 27 now) we were in the checkout line and they started acting up a bit told them if they continued we were going right home and they were going to their rooms.
Well this gentleman in front of us turned around and started to say something. And I thought oh boy here we go...
But what he said to my surprise was "good for you you keep on your kids and they will turn out to be good people."
And they did!!