Secrets

Silas: Running board. Running board. Mom, some people call me running board.
Me: Really? Who calls you running board?
Silas: Oh, just some people. You don't know them.
Me: Hmm. So what are their names? What do you call them?
Silas: Well, I can't tell you. It's a secret and I can't tell you because I don't know their names.