Claudine Ko, a reporter doing a 2004 profile on him for the now-defunct Jane magazine, learned this the hard way (pun very intended). During one interview, Charney and a female employee "put on a show" for her, which means, if we understand the implication, that they banged right in front of her. Over the course of her other interviews, Charney would freely masturbate as she was asking him questions. She took notes throughout the whole thing, some of which we're assuming were just doodles of dicks. As Charney explained to her later, "Masturbation in front of women is underrated."
He then cut the interview short to get to the set of a Geraldo porn parody he was starring in.
Oh, and there's the fact that since the mid-2000s Charney's been sued half a dozen times by his employees for sexual harassment. We have no way of knowing how many of those complaints were legit (most of the cases have been settled or dismissed), but we're talking about a man who admits to regularly holding business meetings in his bedroom. He once bragged about testing his clothing on strippers. On top of all that, he's not shy about appearing in those aforementioned borderline porn ads, most of which look like they were shot with a cellphone camera from the 1970s and then filtered through Instagram.
"You're welcome, ladies."