I'm not trying to "strike her down" and make her into some feminist Obi Wan. I'm simply learning how the game works nowadays. If I'm hanging out with some of my colleagues during conference breaks and chatting, and a female attendee walks in, my job and my 2 kids college fund/food supply/roof depends on me immediately maintaining a silence and uttering "Yes m'am" or "No ma'm" if and when appropriate, and that is all. There will be no conversation, exchanging views on squat, smiling etc. Its just gotten too dangerous to talk freely now.