Martin: Hey, Fras. You'll never guess who I just saw. I went over for a cup of coffee with Hank. You remember Hank? He's the security guard who works at Weston's jewelry store. Anyway, we were in his booth, just shooting the breeze, looking at the surveillance monitors, when who do I see buying an engagement ring, but Donny. As in "Daphne & Donny."
Frasier: Donny? Are you sure?
Martin: Yeah. Engagement rings is Tina's counter. We use the zoom lens on her.
Frasier: Dad, I'm shocked!
Martin: Oh, no, it's just innocent fun. She only dresses that way 'cause she knows we're looking at her.