Whatchya thinkin'

I'm just wondering what he's thinking when he does things like this:

Yesterday we're sitting in sacrament meeting. The congregation is pretty much silent while a ward member is singing a beautiful Christmas song at the pulpit.

In the middle of the song Isaac stands up on the bench, turns around and yells, "MOVE THAT BUS! MOVE THAT BUS!" Then he starts blowing kisses at the people sitting behind us....

{and in case you're wondering, No. We really don't watch Extreme Home Makeover that often.}