"Hello?" said the maid.

"Hi, it's me," said Bob. "Is madam near the phone?"

...

"No, Sir. She's upstairs in the bedroom with your friend Frank."

After a brief pause, Bob said, "But I don't have a friend named Frank!"

"Yes you do. He's upstairs in the bedroom with Madame!"

"Okay, then. Here's what I want you to do. Put down the phone, run upstairs, knock on the bedroom door and shout in to Madame and Frank that my car just pulled up outside the house."

"Okay, Sir!"

A few minutes later, the maid came back to the phone.

"Well, I did what you said, Sir."

"And what happened?"

"Well, Madam jumped out of bed with no clothes on and ran around screaming, then she tripped over the rug and went out the front window and now she's all dead."

"Oh my God! What about Frank?"

"He jumped out of bed with no clothes on too and he was all scared and he jumped out the back window into the swimming pool, but he must have forgot that you took out all the water last week to clean it, so he hit the bottom of the swimming pool, and now he's dead too."

There was a long pause, then Bob said, "

Swimming pool? Is this 555-7039?"