public bathrooms

there are several major reasons why i don't like sharing a place with a whole bunch of girls [or guys for that matter]. but one of the main ones that bug the crap out of me is the bathroom:

1. toilet paper has always been an issue. not only that sometimes that there is none, but it never gets put back in the rollie thing. its like, how hard is it to insert the stick into the roll and put it back instead of leaving the toilet paper on top of the old one?
2. humidity. our [pleasant] bathroom at school does not have ventilation. so after someone takes a shower and leaves the door shut, the bathroom ends up getting all muggy and moldy. if the door likes to close behind you, then stay there and make sure it stays open. i dont feel like inhaling invisible mold. 
3. because there is no ventilation, you have got to spray it after you do your business. like i said before in a previous post, your poop does not smell nice, despite what your mother says. 
4. i find that the toilet seat is a sacred place. its where some people do their best reading and thinking. and i get that some people like to sit there for hours on end, i get that. i really do. but why is the toilet seat sticky?? you do not eat with your butt, so there is no excuse for why your butt is sticky...unless you sweat in your butt...which is weird...
5. close the door when you go to the bathroom and lock it. and if someone knocks, then answer, otherwise its a go for the knocker to just barge in. then you can't give us dirty looks.