Academic Men Explain Things to Me

I am a second-year undergraduate medical student at a well respected university. In an anatomy tutorial about the urethra and catheterisation (putting a tube connected to a bag in people’s peehole when they can’t pee adequately) a male acquaintance exclaimed that men were so unlucky because it would be so painful for them (the process is usually done with only an anaesthetic lube). I said that it would be painful for women also, even though our urethra is shorter, it’s still hard to get a tube up there! To this he replied; ‘um no, the hole is huge, I mean, you can fit a dick in there!’ When I tried to explain that he was confusing the urethra with the vagina he wouldn’t believe me. So I told him that as a woman, I thought I had some knowledge of my own anatomy. Plus how did he think women could pee with a tampon in? When he actually looked it up he just stared at me blankly while simply saying 'Oh. You’re right.’ As if because I am a woman (with both a vagina and a urethra) he was surprised that I could possibly KNOW HOW I PEE.