Al: Thank you and welcome back to our segment on stain removal.
Tim: When talking about stains, most people think of stains in clothes - food, grease...
Al: And the kind Tim is most familiar with, bloodstains.
Tim: Oh. Speaking of stains, what is that? [Tim flicks Al's nose as he looks down] Ting!
Al: I can't believe I fell for that. That's the oldest trick in the book.
Tim: No, no, no, Al. [taps Al on his left shoulder] That is the oldest trick in the book.