I saw the thread about what we like about being a girl - eveything I guess! - but what don't you like about being male?
There's quite a few things I could point to, but for me the worst is 'nuts', 'balls', testicles, whatever you want to call them. They get in the way, they stick out the side of my knickers, they're a nuisance. Not sure how I'd explain to my wife if I got rid of them though.