OK this is not nuclear related but it is energy related so it is a nuclear cousin. Saying that you are full of it could be a good thing in the future. 8)
Biofuel made from human excrement has become easier to produce
Using HTL, PNNL estimates that those 34 billion gallons of sewage a day could be theoretically turned into 30 million gallons of refined oil per year. Each American, on average, could generate two to three gallons of the unrefined biocrude per year. (In the future, grandmothers around the country could have another reason to push you to eat more: "You look too skinny! Do you eat? Think about American oil independence!" as another spoonful of casserole gets unloaded on your plate.)
http://arstechnica.com/science/2016/12/in-the-future-humans-could-help-make-gallons-of-sewage-based-biofuel-a-year/ (http://arstechnica.com/science/2016/12/in-the-future-humans-could-help-make-gallons-of-sewage-based-biofuel-a-year/)
How much energy does it take to heat and pressurize the waste to get a usable product? How much energy can you then get from that product?
probly less energy than it takes too process crude oyle from the earth two refinery plus the cost of removal of excrement from sanitary system.