One day I found Morris, my five-year-old son, with the telephone, which he quickly hung up when he saw me.

"What were you doing?" I asked him.

"Calling Aunt Sarah."

"How could you have called Aunt Sarah?" I asked. "You don't even know her number."

"Yes, I do and I did call her," little Morris replied.

I wasted a lot of breath trying to convince him that he didn't know her number, but he insisted he had made the call.

"Okay," I said finally. "What did she say then, if you called her?"

"She told me I had the wrong number."