A Lot
One friend answers every comment by generalizing it to 'a lot of things,' until the group calls out the habit.
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Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2017-06-29-a-lot/ (CC BY-NC 4.0)Transcript
A: "And the end of the movie doesn't give you any easy answers." B: "A lot of things don't give easy answers."
C: "I'm worried she'll make a terrible Senator." B: "A lot of people would make terrible Senators."
D: "Don't you think email takes more time than it's worth?" B: "A lot of things take more time than they're worth."
C: "It's hard to tell if your new conversational maneuver is passive-aggressive, or just lazy." B: "It's hard to tell a lot of things."