Frasier: I'm just so tired of being surrounded by happy couples, I just thought I should do something a bit more proactive.
Roz: You wouldn't be talking about Niles and Daphne, would you?
Frasier: Oh, among others. Believe me, no one could be happier for Niles than I, but there are days when his lovesick swain act wears the tiniest bit thin.
[Niles enters wearing a white t-shirt which features a heart-shaped image of him and Daphne]
Niles: Hello, all. Notice anything different?
Roz: I like it.
Niles: Thank you. I've never worn an undergarment in public before.