Bathroom Monologue: Thinking of the Phone in the Bathroom

Here's a prank call nobody makes. You look up a number in the phone book, then call.

"Hello?" she answers.

In your deepest voice, ask, "Is this Valerie Nab?"

"Yes?" she answers in a half-question.

"That's good." Then, taking your mouth away from the receiver, say loud enough that she'll still hear, "Location confirmed."

Then hang up.

Nobody makes that prank. No clue why.