My first sexist moment! Today, at my shop, I had called about a problem and a factory rep came out to try to help. Well, my boss introduced me to him when he arrived and she also asked a couple other techs to observe how we may resolve the particular technical issue.
Well after we meet and then started the technical talk, he immeadiatly stops looking at me and starts talking directly to one of the other male techs who was not involved at all. (they were both well over 6 foot and talking eye to eye, I'm 5'5")
I almost had to wave up at him and sort of indicate, hey, I'm the one you need to be talking to. Finally after he realized I was the technical person he needed to be talking to, all went well.
I shared this with my boss, laughlingly saying I had my first sexist moment. She said "Welcome to the world of women. I have had this kind of treatment all my life." She has always been very technical, starting out being the only female in electronics shop class in high school.