Quote from Ted in Twin Beds
Ted: Well, I think you should move in with him. Robin: You do? Ted: Yeah. Yeah. I mean, I see how happy you are. And as much as I love you as a roommate, I want you to do what's right for you. Robin: Oh! Are you trying to kick me out because of the milk thing? Ted: It's really annoying. [flashback to Ted going to the refrigerator and taking out a carton of milk that turns out to be empty:] Ted: Robin! [Ted goes into Robin's bedroom while she sleeps and places the empty carton in her bed] [present:] Robin: No. I have a system. I put the empty carton back in the fridge to remind us to buy milk. Ted: Okay, why don't you leave a full carton to remind us we don't have to buy milk?