It happens.
Nice stately home in countryside hosting 3-day courses, away days etc.
A lot of drinking, sitting around in lounges. Ended up with a rampant banker from another company banging down my room door - who was he?? I don't even remember talking to him. He obviously thought this sorts of conferences were jollies. I was very naive - really glad I did not open my door but spent 30 minutes cowering behind it. Next morning, none of my colleagues mentioned it.
More bankers ... Used to go for meetings with them in London - very professional. Then went on a business trip. Suddenly, this one was eyeing me up, made a big thing about taking off his wedding ring. Yuck.
Thankfully, I no longer work in that environment. But yes, sad.