Quote from Chandler in The One Where They All Turn Thirty
Chandler: All right, read the card. Read the card. Rachel: "Happy birthday, Grandma. It's better to be over the hill than buried under it. All our love, Monica and Chandler." That's funny. Chandler: No, no. That was a joke. Rachel: No, I know, I get it. It's funny. Chandler: No, because you're not a grandmother- Rachel: I know, because to be a grandmother, you have to be married and have children and I don't have any of those things. That's why it's so funny. Monica: All you had to do was buy the card.