THIS. ONE. I have had many men give me advice about running my business, including things like I have to remember to be “nice.” Most of these men had no experience running a business themselves. And in fact I asked one of them point-blank, “if I were a man, would you be telling me this?” The look on his face was priceless because he realized he was being sexist, and it’s actually kind of hard to catch someone realizing something like that.