Someone's at the Door

Yesterday I heard a knock at my door. The top half of our door is frosted glass, so you can always tell if there's a person there or not, as well as see a vague outline of them. I looked up, but there was no one there, so I thought I must have imagined the knock.

A minute later there was another knock at my door. Again, I looked up, but no one was there. Puzzled, I went to the door and opened it anyway. And then I looked down. Here's what I saw: Our little neighbour from three doors down, roughly 18 months old, had ridden over and wanted to play. Isn't he cute?