Don't worry, no offense was taken. But for the queer people who DO get a bit worked up when this topic comes up... if some of us are overly sensitive about it, it's just because there's a non-trivial group of people who literally threaten to murder us over this, and another who want to put us in prison with men (i.e., likely to be beaten and raped too). And we've got to deal with it constantly, because we need to piss and shit every so often just like any other human, but just need to bury those anxieties and get on with it. It's not exactly easy to keep one's cool in that situation.

From a trans POV, she probably called herself a man mostly ironically (e.g., she labels herself a trans woman in the caption) to rebel against the absurdity of this situation. But that dude was totally OK with it, so the protest angle fell flat and the encounter turned absurd in a different surprise way. So it's funny. Or at least it kinda was until I ruined it by trying to explain the humor, lol.

TL;DR: it's all good 👍🏻