Rory: We need a signal.
Lorelai: A kissing signal?
Rory: Something to avoid this.
Lorelai: Okay, how 'bout I shoot off a flare when I'm outside necking with a boy?
Rory: You know what I mean.
Lorelai: Or I could bang on the door and yell, "Hey, we're necking out here!"
Rory: I still say we need a signal.
Lorelai: We'll think of something.