A man goes to the doctor complaining of abdominal pain.
While examining the man's abdomen, the doctor asks "Have you been doing any strenuous activity recently?"
"Well," the man replies, "I'm in the process of moving twelve pallets of cinder blocks for a shed I'm building."
"I see. Well, it looks like that's given you a pretty bad hernia. We'll need to perform surgery to patch you up."
---
So the man goes into surgery later that week. While he's in recovery, the doctor comes out to speak to the man's wife.
"Is everything okay with my husband?" she asks.
"Yes ma'am, he's recovering well. It's just..."
"Well, what is it?" the wife demands.
"Well, we've been trying this new surgery technique for hernias. It makes for a faster recovery but... in order to do it, we had to make your husband's penis two inches longer. I really hope this doesn't affect you negatively."
The wife scoffs. "Thanks, but I don't think it will affect us at all."
---
Three weeks later, the man goes back to the doctor for his post-op checkup.
"How are you feeling now?" the doctor asks.
"Doc, I couldn't be better. I feel like a new man."
"And how does everything feel... down there?"
"You know, I can't complain!"
The doctor is relieved. "Now, I would advise you not to move any more cinder blocks for another six weeks..."
"Oh, don't worry about that," the man said. "The day after the surgery, my wife called her tennis instructor, and he was generous enough to finish the job for me!"