The five year old, "I'm thinking of a number between twenty and one."

Me, "What letter does it start with?"

Him, "'T.'"

Me, "Ten."

"No."

"Twelve."

"No."

"Thirteen."

"No."

"Two."

"No."

"Three."

"No."

"Twenty-one."

"Yes!"

I am patient. I have played this game with him before -- the number was "zero" that time. If only I had asked for the first letter on that occasion! I ought to know how he thinks by now and go right for the jugular. But it's the thrill of the chase for him.