Prisoners who refused to eat human flesh used other tricks to survive. At Krinovaya, a group of Italian entrepreneurs retrieved excrement from huge latrine ditches and with bare hands picked out undigested corn and millet, which they washed and ate. German prisoners swiftly improved the process. Setting up an assembly line of sieve-like tin cups, they strained the feces through them and trapped so much grain that they started a black market in it.
