Quote from Lorelai in Take the Deviled Eggs...
Rory: Yeah, but it's gonna be one of those brunchy quichey things where I don't know anyone, and it's all the way in Boston. Lorelai: I'll drive you there if you want. Rory: Really? Lorelai: Yeah, I'll do some Boston shopping while you quiche it. Rory: And we can set up some sort of SOS signal that I can page you with if I want to bail early? Lorelai: Sure. Rory: What should the SOS signal be? Lorelai: How about... SOS? Rory: Perfect.