Interesting notion. I've smoked stoagies in the past to mask the scent of death, with good effect, but it is an acquired talent; one the uninitiated would not appreciate.

For disposing of human waste without the support of a sewer/septic system, I find the "Platoon" method to be an effective alternative at any time of the year. The notable caveat is a ready supply of fuel, in this case diesel, in which to run the burn barrel. It is the technologically least sophisticated method of rendering human waste inert and essentially unhazardous. If you had a big enough electrical supply handy you could do the same with that, or any other heat source that will quickly and satisfactorily decompose the waste. Rendering waste through heat decomposition has been around for a long time.

There are also chemical alternatives, such as lye and caustic soda, but not as reliable perhaps.