Frank: Number 10, your order is ready.
Kelso: [playing game] Yeah, I'll be right there.
Frank: Number 10. I have limited counter space. Please remove your hot dog.
Kelso: Oh, all right. I don't see why you can't just serve us our food, Frank. We are paying customers, you know.
Frank: Hey, I did not lose a leg in Vietnam, so that I could serve hot dogs to teenagers.
Kelso: You've both your legs, Frank.
Frank: Like I said, I did not lose a leg in Vietnam.