Our then-18-month-old grandson rapidly became a bulldozer on two legs. He didn't actually walk anywhere; he ran everywhere. Of course, he didn't always get around like that. First, he only went where one of us carried him. Then the crawling started. He didn't do that for long. He graduated to walking real fast. And, like every baby who ever learned to walk, he began by taking a step or two and then he fell down. I guess he could have said to himself after a couple of falls, "Oh well, I guess I wasn't cut out to walk. It's just too hard. I keep falling down. I think I'll just lie here from now on." Oh, great! Fast forward to when he's 18 years old, and his mother has to vacuum around him. His friends come over and he says, "Hey, you want to roll into my room with me?" No, it didn't work that way. After he went "step-boom," he got back up and went "step-step-boom." And then "step-step-step-step-boom." Then you couldn’t stop him!