(Emily has offered to show Susan around London and Ross is worried that Susan may seduce Emily the way she did Carol)
Chandler: You're crazy! Okay? This is Emily. Emily... is straight!
Ross: How do you know? We thought Carol was straight before I married her.
Phoebe: (still thinking of baby names) Yeah, definitely... I don't like the name "Ross".
Ross: (both hurt and confused) What a weird way to kick me when I'm down...