We hear this every Saturday morning. Ellie apparently understands that on a day when she wakes up and Daddy doesn't go to work "to make our money," we go swimming. She loves it and is totally comfortable in the water. I could overanalyze it and say, oh, it's a sensory thing, it fulfills some tactile need, but let's face it. Water is fun. You don't need 10 hours a week of therapy to figure that one out.