Joke stolen from: Training2Laugh

One night our dog suddenly began barking almost every night at around 3 AM. Irritated and sleepy, my husband, Larry, searched the back yard for what might have disturbed this otherwise-peaceful animal.

For three days he found nothing amiss. When the dog awakend the neighborhood a fourth night at 3 AM. with frantic barking Larry finally snuck around the house, and through the alley, only to discover our quiet neighbor, the last man you'd suspect of wrongdoing, throwing pebbles over the fence at the dog. My husband demanded to know what he was doing.

"My mother-in-law is visiting," the embarrassed neighbor explained. "If she gets woken up in the middle of the night one more time, she says she'll leave!"

"Hmm..." replied Larry, "Here are some more stones to throw."