Second, there was no harassment in my story. The person at the bar interpreted the comments as about him. But as I was writing the story, I imagine they were talking about something else entirely, and didn't notice him.
Third, I was not attempting to appeal to homophobic tendencies. I was attempting to create a legitimate scenario where an average guy might feel afraid of sexual assault. I couldn't tell the story with straight women; men rarely see women as physically threatening. And I obviously couldn't tell the story with straight men, because a straight man wouldn't feel a risk of sexual assault.
If you've got a better story to help give a guy a visceral fear of sexual assault, I'd like to read it.