Out in the middle of nowhere a UFO drops out of the sky at a gas station, the aliens not concerned go out of the ship.
The ship even has the letters UFO emblazoned on the side. While the owner of the station stands speechless, his young employee goes and fills up their tank and even waves as they pull off.
After they’re gone the owner looks shocked at his employee. He says, "Do you realize what just happened?"
"Yeahâ€she replied?"
"Didn’t you see the letters UFO?"
"Yeah†she repeats" and?"
"Do you know what that means?"
"Gee boss, I’ve been working here for 5 years, of course I know what it means,
“Unleaded Fuel Only"