A guy goes to the pharmacy and asks the pharmacist for some Viagra. The pharmacist asks him for his prescription. The guy explains he doesn't have one, doesn't have "that problem".
"Look, man, I have a date with these two stewardesses tonight. I just wanna make sure I'm up to all of that!" With a knowing grin, the pharmacist says OK and gives the guy a dose.
The next day the guy drags himself back in to the pharmacy, looking very bedraggled. The pharmacist winks and asks him how his date went. The guy says "Well, a picture's worth a thousand words" as he unzips his pants and whips his member out. It looks like a dog's chew toy. Its bleeding and has the overall appearance of hamburger.
"My god!" exclaims the pharmacist.
"Yeah" says the guy "now tell me, where's the Ben-Gay ointment?"
"Oh no, you don't want to put Ben-Gay on that!" says the horrified pharmacist.
"Oh I know, its for my arm" says the guy. "Those gals never showed up!"