I would hope the lesbian community would be inclusive of heterosexual males with an adolescent sense of humor.
They are Duke, some, not all, have one heck of a sense of humor, these are the gals that have little mental problems about who or what they are.
Seems to me that the most stable people I know be they straight or bent are those that have no problem with themselves or others.
Polish jokes, Italian jokes, Black jokes, Irish jokes only offend the the outsiders, as they may in fact cause concern that the jokes may turn on them.
What offends people is way too often a sign of who and what they themselves are.
The bent couple were obviously looking for a reaction from the shirt one of them wore. So they got what they expected, turned the shirt inside out and went on to have a fun day.
This was not the deal in LA. where the man was beaten half to death for wearing the wrong shirt to the Dodgers game.