An old man in his mid-eighties struggles to get up from his couch, then starts putting on his coat.
His wife, observing her husband’s odd behavior, asks, “Where are you going?”
He replies, “I’m going to the doctor.”
She says, “Why, are you sick?”
He says, “Nope, I’m going to get some Viagra.”
Immediately the wife starts positioning herself to get out of her rocker and begins putting her coat on.
He asks, “Where the hell are you going?”
She answers, “I’m going to the doctor, too.”
He says, “Why, what do you need?”
She says, “If you’re going to start using that rusty old thing, I’m getting a tetanus shot.”