Good Question Tom, we don't do #2 in our PC.
I'm with Tom. Say we're parked in an unlighted, deserted, no hookup campground with really smelly pit toilets and it's 40 degrees outside and I wake up at 2am with a desire to go to the toilet. Do I get up, get dressed, get a flashlight, and head out into the woods with the wolves and bears? Or, do I roll gently out of my twin bed right by the rear bathroom and enjoy the comfort of modern plumbing? Even if it means flushing the tanks at the next stop with hookups, I don't have to think twice. Jerry