An airman in a bar leans over to the guy next to him and says, "Wanna hear a marine joke?"
The guy next to him replies, "Well, before you tell that joke, you should know something.
I'm 6' tall, 200 lbs, and I'm a marine.
The guy sitting next to me is 6'2" tall, weighs 225, and he's a marine.
The fella next to him is 6'5" tall, weighs 250, and he's also a marine.
Now, you still wanna tell that joke?"
The Airman says, "Nah, I don't want to have to explain it three times."