We took the kids to one of those restaurants where the walls are plastered with movie memorabilia. I went off to see the hostess about reserving a table. When I returned, I found my 10-year-old granddaughter staring at a poster of Superman standing in a phone booth.

She looked puzzled. "She doesn't know who Superman is?" I asked my wife.

"Worse," my wife replied. "She doesn't know what a phone booth is."