A flying saucer, running low on fuel, decided to refill at a gas station on a lonely country road. The two aliens inside seemed completely unconcerned about detection; in fact, the letters "UFO" were emblazoned in big, bold letters on one side of their craft. As the station owner stood and gawked in silence, paralyzed with shock, his young blonde attendant nonchalantly filled up the tank and waved to the two aliens as they took off.
"Do you realize what just happened?" the station owner finally uttered.
"Yeah," said the blonde attendant. "So?"
"Didn't you see the space aliens in that vehicle?!"
"Yeah, so?"
"Didn't you see the letters 'UFO' on the side of that vehicle?!"
"Yeah, so?"
"Don't you know what 'UFO' means?!"
The blonde attendant rolled his eyes, and exclaimed, "Good grief, boss! I've been working here for six years. Of course I know what 'UFO' means 'Unleaded Fuel Only.'"
