R has fallen and scraped his knee at the play-scape at McDonald’s and is in need of comforting.
R — Can I sit in your lap?
Mom — What am I going to do when you are too tall and too heavy for me to hold in my lap?
R — I’ll never be too tall.
Mom — One day you’ll be taller than me.
R — I’ll never be taller than you, because I started my life after you.