Bob called home one afternoon to see what his wife was making for dinner.
"Hello?" said a little girl's voice.
"Hi, honey, it's Daddy," said Bob. "Is mommy near the phone?"
"No, Daddy. She's upstairs in the bedroom with uncle Frank."
After a brief pause, Bob said, "But you don't have an Uncle Frank, honey!"
"Yes I do. He's upstairs in the bedroom with Mommy!"
"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 Mommy and Uncle Frank that my car just pulled up outside the house."
"Okay, Daddy!"
A few minutes later, the little girl came back to the phone. "Well, I did what you said, Daddy."
"And what happened?"
"Well, Mommy 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 fell off the porch roof and fell down on the lawn without her clothes on."
"Oh my God! And what about this Uncle Frank?"
"He jumped out of bed with no clothes on too and he ran down the back stairs when he was trying to put his pants on and he fell down and landed in the kitchen on his butt, and then he ran out the kitchen door, but slipped and fell into the swimming pool"
"HA! That'll... "
There was a long pause, then Bob said, "Swimming pool? We don't have a swimming pool... Is this 555-7039?"