It was just around bedtime. The kids had do brush their teeth. Just at the same time I was washing my face when Jr. says
"daddy can you wash your face again?"
Me : Okay. Why?
Jr.: From here I can see the top of your head in the mirror when you bend towards the wash basin and the light shines on your head.
Me : okay. so what?
Jr.: I can see a bald spot on your head. there is "NO" hair there.
Me : Thank you for your observation. Soon the spot will grow and only a small spot of hair will be left.
Jr.: I will still love you daddy if you are bald!
Mom has trained her well!