Something that happened on our trip last week reminded of how important it is for laughter to be part of the training/disciplining/parenting equation.
The girls were really good; but Mckayla went through a few times where she was rather indignant and whiny about what she wanted. At one point, Paul turned around to sternly correct her. She got the picture and everything settled down. A few seconds later, I heard her giggle. I looked at Paul and realized that he was making silly faces at her. She laughed and he laughed and after a couple minutes it was done.
But it stuck in my mind. I have to remember to do that more.