If you have to use an outhouse.....

I recommend this one in Essex, MA.  It's at the Essex Shipbuilding Museum, where they restore old wooden boats.

Side view.  Welcome to Essex!

It has a nice hand-crafted door latch,

and a counterweight on a pulley to swing the door closed.

This outhouse even has interior decor,

 quality reading material,

and a great view when you walk out!