I don't find the story unbelievable. I like to believe that whom I choose to keep as my friends and colleagues is a reflection of myself, and I aspire not to be sexist or bigoted towards any minorities. Those of my friends I've spoken to about this who are women engineers haven't experienced anything to the degree I hear about in the articles (but they still acknowledge biases against them or annoyances in the conduct of their peers).

But this is an endemic problem. Are the male colleagues I have part of the problem and I am simply failing to realize it? Have I done a good job of choosing colleagues who don't behave that way? How can I know?