When nature calls

So today at work, I am getting ready for my last lesson of the day. I am welcoming all the kids when I notice that one little boy is missing. Both of his sisters are there, but they tell me that they don't know where he is. So we start swimming and ten minutes later he runs up, and wouldn't you know that the first words out of his mouth were: "Sorry I'm so late, but I really had to poop." Ha! It totally made my day!