Quote from Dean in Red Light on the Wedding Night
Dean: Their eating habits are just the start of what you have to get used to. There's tons of stuff you should be aware of.
Max Medina: Really?
Dean: Oh, yeah. Like, don't ever use the last of the Parmesan cheese. And never get into a heavy discussion late at night 'cause that's when they're at their crankiest. And, uh, go with their bits.
Max Medina: Their bits?
Dean: Yes, like if you're eating pizza with them, and Lorelai decides that the pepperoni is angry at the mushrooms because they have an attitude and then she holds up a pepperoni and the pepperoni asks for your opinion... don't just laugh. Answer the pepperoni.
Max Medina: Answer the pepperoni.
Dean: And don't let them near puppies, they'll want every one.
Max Medina: That one I knew.
Dean: Oh, and here's a big one. If you ever think that they're doing something crazy, they're not. You see, after a while, their thinking becomes clear, but by the time it's clear they've done two other crazy things that you can't figure out. So there's no catching up.
Max Medina: You have much knowledge.
Dean: You got that from Rory.