I forgot to add this yesterday...

We were playing out back and I was pushing Darius on the swing. I was pretending he was kicking me, yelling "ow!" and 'falling' across the yard, which he found very funny. This, of course, attracted Taye who asked me to pick him up. So I adapted the game, and had Darius kick Taye in the butt every time. I thought Taye was going to choke he was laughing so hard. Another fun game was born...