It’s happened to me in the gym, despite being someone who’s not normally afraid to speak up I didn’t confront them or complain.
The gym I go to has 3 changing areas, male, female and mixed sex/disabled with lockable individual floor to ceiling cubicles.
The female changing rooms is mostly open with only 4 cubicles. The first time I encountered a trans identified male in the female changing rooms was after I’d been for a swim. There was an aqua fit class finishing at the same time I was getting out the pool, so there was circa 30 women all heading to the changing rooms at the same time.
I go swimming 3 times a week and so you often get chatting with people you see regularly in the changing rooms or see other people chatting with friends etc, it’s always noisy with hair dryers / people talking to one another but it’s a relaxed friendly atmosphere.
This time was different though, you could hear a pin drop. Women who would normally be chatting with each other and changing in the open areas were standing dripping wet with their towels wrapped round them queuing for the cubicles. They weren’t chatting, they were either looking at the floor or nervously giving each other knowing sideways glances. It took me a moment to process why everyone in the changing rooms were acting so strangely, I glanced over to where the mirrors and hair dryers were and I understood why.
There was only one person sat in front of the mirrors applying makeup and it was very obviously a man who identified as a woman. He spent ages applying makeup and drying his hair (despite it being completely dry) whilst he was doing this he was looking at the women in the mirror standing behind him waiting for cubicles. And when I say looking I mean lingering, not looking away if you noticed him looking at you, like an uncomfortable stare (not just a passing glance).
The women in the changing rooms all clearly felt uncomfortable, altered their behaviour, didn’t change in the open areas, didn’t hang around to dry their hair, chat or put make up on. We all just waited for a cubicle then got out of there as quickly as possible.
I didn’t say anything because when you’re 5”1 dripping wet in a swimsuit you feel quite vulnerable, especially when the person you would be confronting is a 6ft man who’s already comfortable transgressing women’s boundaries, even when a 3rd space is available.