Thing is it was like a chat type situation, and a woman was talking about how her (female) relative had done all this work on water, and I was just trying to join in with her and sure, fucked up, but I was just saying, oh that's interesting, I don't know much about chemistry, I've heard of this heavy water stuff though and apparently it's very interesting.
At the time I was thinking I was having a nice chat with a woman about her aunt, not that I was supposed to be representing every single woman in the entire scientific community.
I remember it really upset me at the time. I just thought, well I was just trying to make conversation and be "nice", you know, show an interest, and now someone's just sort of unexpectedly gone for me.
I don't always look things up before I make conversation and I even said "this isn't something I know about" and still I got someone saying I was lying and / or stupid, and that furthermore this discredited all women in science everywhere.
Yes it pissed me off maybe more than it should and it was a long time ago but there you have it.