An old man in his eighties struggles to get up from the couch, then starts putting on his coat.
His wife, seeing the unexpected behavior, asks, "Where are you going?"
"I'm going to the doctor," he replies.
"Why, are you sick?" his wife asks.
"Nope. I'm going to get me some that Viagra stuff," he explains.
Immediately the wife starts working and positioning herself to get out of her rocker and begins to put on her coat.
"Where the hell are you going?" asks her husband.
"I'm going to the doctor, too," she replies. "If you're going to start using that rusty old thing, I'm getting a Tetanus shot!"