Quote from Lorelai in The Lorelais' First Day at Yale
Luke: And where's my spare tire? Lorelai: There was a spare tire? Luke: I had my spare tire back here. Lorelai: Oh, we must've accidentally unloaded it on one of our trips. Luke: Could you try to get it back? Lorelai: Yes, as long as Paris hasn't made it into a planter yet.