Yesterday, I took my kids swimming at the Y for open family swim. The kids wanted to play swim tag, with me being "It". How hard can it be, I figured? I am at least twice their length (to say nothing of width) and I'm a faster swimmer. So they raced back and forth within the two lanes that were closed off for family swim and I couldn't catch them. Because they swam totally on the bottom of the pool and I like to stay on the surface. Where there are no sharks.