Since getting the cast on, Brody insists on wearing any shirt, even short sleeved shirts and pajama tops, entirely rolled up, so that you can see the entire cast (which ends above his elbow). The shirt can't even touch the top of the cast a little bit or he gets upset.
I figured out why this morning.
It's because, as he says, "Pretty, mommy. Pretty purple cast." Then he pats the cast.
It's during moments like this, as I realize yet again how extraordinary Brody is, that I feel like the universe played favorites when it gave us Brody.