But I'd REALLY like to think that they're the very unusual outliers. I've been gaming since 1979 and I've NEVER seen anything even approximating that occur. Not in all male groups, not in mixed groups. Never.
No. I've seen similar incidents, and walked away from a few gaming tables at conventions because of them.
Not all guys who game are that creepy, but a nontrivial percentage of them, enough to affect public perception of our hobby, really are.
Admittedly, I came into gaming in university and almost all of my gaming has been with adults. Maybe that made a difference. Maybe I've been lucky. Maybe there are regional elements involved.
Age is definitely a factor, though some of the genuinely scariest offenders - the ones I actually for-real did not feel safe around after they made certain remarks and used certain language to refer to in-game rape - were adult men. Regional, not so sure; I grew up on the West Coast, am now on the East Coast, and I used to travel quite a bit to hit as many Worldcons and Nasfics as I could.