That's my question. I work in a male dominated industry, and mostly get along really well with all of my male colleagues without even noticing that, at times, I'm the only woman here. But occasionally I feel a bit uncomfortable, especially as sometimes they can get a bit schoolboy-ish and show each other questionable videos on their phones, as they have done this afternoon when there's only me here and the other women have gone home. Anyway, just asking out of interest, how common is this?