8ball
Maximum Facepalm
We put in household biogas converters in some of our projects, only a few trial ones but it has been done large scale elsewhere where the temperatures suited better than our mountain location. There was human shit in with the pigs because people's sties were also the family toilet IIRC you could use the residue in the converter for fertiliser too and it was healthier than putting it on direct as more harmful bacteria had been removed.
Ah. The benefits of shit-combining. Another thing that hadn't occurred to me.