"Re: Kids - The Natural Comedians" joke

In response to the request for "kids growing up" stories, here's one
told to me many years ago by some friends about their five-year-old
daughter Laura. The mother calls it "The Kevin Incident." The father
just says, "Like Mother, Like Daughter."
It seems that Laura came home from Nursery School one day and
announced that Kevin had pee-peed in the yard. Since Laura was one of
the older children in the Nursery School group, her parents wanted to
impress on her that she should try to help the younger children learn
right from wrong, so they said, "Well, Laura honey, how big is Kevin?"
Whereupon Laura held her two index fingers an inch or so apart and
said, "Oh, about this big."