As the man began walking toward the door, his wife asked, "Where are you going?"

The man replied, "I'm going to the doctor."

"Why? Are you sick?" the wife asked.

"No," the husband replied. "I'm going to get me some of those new Viagra pills."

His wife got up out of her rocker and started putting on her coat. The husband turned to her and asked, "Where are you going?"

The wife replied, "I'm going to the doctor, too."

"Why?" asked her husband.

His wife replied, "If you're going to start using that rusty old thing again, I'm going to get a tetanus shot."