 Because you, as a normal, as an adult, childless adult, take your shoes off, you put them together in a place. If you find one, you find the other. Kids don't operate that way. In fact, I have caught my kids in the act. The other day, I observed my four-year-old. Because I have wondered this for years. And finally, I said, I'm going to figure out what the hell is going on. So we came home.