For me it’s that he likes to go around asking people physics questions that he knows they will fail to answer correctly, only to smugly explain how they’re wrong.
It’s like those videos where they ask Americans to point to countries on a map so we can laugh at how bad they are at geography… if it was made by Sheldon from the Big Bang Theory. Thing is I usually know the answers to the questions so I get a kind of second-hand shame because I would totally feel like an arrogant prick if I did people dirty like that.