I got a phone call last night at 9:30 from a woman who identified herself as So-And-So-I-never-heard-of's mom.

I say: "Oh Hi," as if So-And-So was someone I should know but don't.

Then she says in the most pleasant voice you can imagine: "Do you know where So-And-So is? I'm trying to track him down."

I hesitate for a moment before admitting "I've never heard of So-And-So. ... I thought my six-year-old was being invited to another birthday party."