I taught "prevention of sexual harassment" to a coed group of high school-aged summer camp employees last year. I decided to go in my UK Mocker. Most of the students' comments on the break were "COOL! Where did you get that?" and the like.

One young man decided to comment (in class) that I couldn't teach sexual harassment prevention to them because "you're wearing a skirt and that means you're not a man."

Hmmm... there's always one.

I pressed on with the instruction, and his peers straightened him out at the next break.

All in all, I counted it as a success!