LFM-- I am aware of this. I know this.
Actually, I was probably exaggerating. I would hopefully restrain myself. I do not say something in these situations unless I am absolutely sure. And even then, in the form of a question.
"Didn't Bowie record it first?"
"I don't know."
"oh. yeah. he did. Dinosaur Jr were covering him."
"oh."
Yes, now that I think about it, I have restrained myself about that very thing on several occasions. The situation in which I would be obnoxious about it would be if she were dismissive of the idea that I could be right, you know? Once someone responds in a way that indicates they don't believe that I could be correct, I lose it. "It" meaning, you know, my chance of getting laid. But do I really want to get laid by someone who is not only wrong, but refuses to acknowledge that they might be wrong?
It depends on the person, of course. When metal kid who bugs me when I am trying to do work tells me that Dinosaur Jr are fuck*ng lame, and "pussy indie rock," I just grimace and say "whatever, man. I like them a lot."