Interesting. I wonder if the sector influences that. I've never seen men hit on women coworkers at happy hours. I Actually had a woman coworker start talking about going to a strip club after one and taking a bunch of other men and women there and inviting me too. I have to say, that wasn't something I was expecting (I was only there a year at that point). I'm in finance IT. I haven't noticed it in the office either. That said, I wouldn't be surprised if it happens on a small scale. I've had 2 women say... "stuff"... to me in the office before.