On the train back from my sister's, TwoBert eagerly points at the back of a man's head two seats ahead of us.
Me: That man isn't Daddy. I'm Daddy.
TwoBert [still pointing]: Daddy!
Me: I don't think that's Daddy. Because this is me. I'm right here, next to you.
TwoBert [unswayed, still pointing, and looking right at me]: Daddy!
Robert: You have to admit, Dad. That guy's pretty much bald, just like you.