When there is that person IRL that finds out you're into retro/classic gaming. Then proceeds to tell you which 16bit system was better. Im just like no no no don't even talk to me. Just go away! Like that horse hasn't been flogged enough
(My move) Listen respectfully, then after about a minute, nod your head, say, "Oh Yeah, that's pretty much what I think, Hey..I gotta run! Gonna grab a beer and I see a friend I need to talk to..." Catch ya later!