Ross: Maybe Phoebe will switch with me.
Chandler: No, no, no. You don't want to do that. Then you're going to get stuck with Rachel, and she exchanges every gift she ever gets.
Ross: No, that's not true. I got her lots of stuff she never took back.
Chandler: Like?
Ross: Like that gold necklace I got her last year.
Chandler: And when was the last time you saw her wear it?
Ross: Well, she wore it all Christmas day and then ...
Chandler: Big dog?