Henry's new job had him spending a lot of time on the road, and out of concern for her safety his wife visited a pet shop to look at watchdogs.
"I have just the dog for you," said the salesman, showing her a miniature Pekingese.
"Come on," she protested, "that little thing couldn't hurt a flea."
"Ah, but he knows karate," the salesman relied. "Here let me show you."
He pointed to a cardboard box and ordered, "Karate the box!" Immediately the dog shredded it. The salesman then pointed to an old wooden chair and said, "Karate the chair!" The dog reduced the chair to splinters.
Astounded, the wife bought the dog.

When Henry got home from being on the road, she announced to Henry that she had purchased a watchdog, but Henry took one look at the little dog and was unimpressed.
"That scrawny thing couldn't fight his way out of a paper bag!" He said.
"But this Pekingese is special," she insisted. "He knows Karate."
"Now I've heard everything," Henry replied. "KARATE MY ASS!"

Ouch!