Quote from Barney in Intervention
[Barney is at MacLaren's dressed as an old man, in full prosthetic make-up:] Barney: Why, hello, young lady. You want a butterscotch candy? [later] Barney: What do you mean, "nothing in common"? We're both seniors. [later] Woman: You're cute. How old are you? Barney: 83. How old are you? Woman: 31. Barney: Oh. [gets up and leaves]