As someone who has, on multiple occasions been required to watch pornography as a part of my job, I cannot fathom how people think that this kind of culture is acceptable in a workplace. It's one thing to have to deal with sexual content, especially in mixed genders, it's an entirely different thing to then turn your workplace into a sexual haven. Unless your job is specifically in the sex trades, there's no reason to ever unzip your pants in front of a co-worker male or female. Keep your privates private. If you really feel the need to masturbate at work there are private stalls in most workplaces that would serve this purpose just fine. The fact that this kind of thing still needs to be said boggles my mind.