>>I notice that you neglected to answer how you go about cleaning yourself after defecating into the bottles.

I didn't because I personally don't do that. I don't see how it's as big a deal as >>33 is trying to make it seem, though. Many people keep tissues in their room. Also, wet wipes are fairly popular, too. They come in small, compact containers and are as good as washing your hands, so that eliminates another cleanliness problem I'm sure you'd bring up.