Jerry: He overslept and missed the whole race. Isn't that amazing?
George: I'll tell you what happened. I bet he got the AM/PM mixed-up.
Jerry: My money's on the snooze. I bet he hit the snooze for an extra 5 and it never came back on. [Kramer enters] Imagine your whole life riding on an alarm clock.
Kramer: Alarm clocks? I never use them. Don't trust them.
Jerry: What do you do?
Kramer: I have a, uh, mental alarm. I set my head for quarter to seven and... [pop] I get up!
Jerry: Always works?
Kramer: Oh, it never fails. See, it's based on your body clock. See, your body has an internal mechanism. It knows what time it is.