I've done field work in wilderness areas, including Grand Canyon National Park, where we had to pack *all* solid wastes out. So we had a bucket with a liner and a lid, but then got in an arguement with our helicopter pilot - a substitute because our regular pilot was out on medical - that *the bucket* should most definitely NOT be in the cabin of the helicopter, it should be in the cargohold. This poor flyboy was used to flying big whigs around, not scrappy biologists and their stuff.

We were *civilized*, we did have a toilet seat that balanced on top of the bucket, and in another bucket was the toilet paper, a package of lime, and some tabloids for reading. Each bucket had a lid to protect or contain the contents. This humble toilet was on the edge of camp behind some shubbery. We went to "commune with nature."