When someone says something to which you havent a clue what they're talking about.... you stare at them blankly and after a pause say calmly, "sorry dude, im not into pokemon" and then just walk away. just walk away.
Craig: "Hey Jeff, I just finished that relativity project i was working on with the group. Sort of crazy how Billy figured out that "E" wasnt really equal to the square of MC because he took out the mitigating factor. You want to come down to the lab and check it out?"
Jeff: .......... "Sorry dude, im not into pokemon"