Then tell the guy at full dilation, you can't find a cervix and will need exploratory surgery... :-D
His voice would rise instantly.
he could then more closely identify with his chosen sex.
Maybe the doc should play along. He could take a look, then inform the man that he has man parts.
“I’m sorry, ma’am, but you have man parts. Our equipment is designed for lady parts, and trust me, you really, really don’t want us to use this equipment on you. By the way, your bill for this visit is $600.”
LOL!