A "guy" will leave the toilet seat up, a "man" will not!
Why do guys leave the toilet seat up?
Because we don't have to have it down. Unless if we're doing number two, and by then we've learned to check to see if the top is up or not.
Well, it's respectable to leave a toilet seat up after guys are done.
Mine is closed because I have cats and I don't want them in the toilet. However, if everyone would check before use, there wouldn't be an issue. Guys have to put the seat up to use it and girls have to put the seat down to use it. Just check.
In addition, I don't care how the toilet paper goes on the roll - just the fact someone took the time to replace the roll is okay in my book.