There's a distinct difference between competency and dickishness, the latter of which, yes, I'm all too familiar.
Right now, gas. I'm working on trying a self-sustaining system (admittedly, it isn't going well) as well as a separate, experimental system that runs off of food waste (which is going well with the exception of the fact that it doesn't have the target longevity). Hence my gratitude for the help in the field finally.