Things That Go Bump in the Night

I was awakened in the middle of the night to a very loud noise from down the hall. Quite frankly, it was so loud, that I froze as I listened to see if I could hear anything else. I was seriously afraid that someone was in our house. I was terrified. When I recovered my nerve, I rose to investigate. What I found was my son, standing in the hallway. I tried asking him what had happened, but he was mumbling nonsense. It seems that he had been sleepwalking. The door to the hallway was nearly closed, and in the dark, he ran straight into it, slamming it closed. In the light of day, he has no memory of it whatsoever!