1930s Italy and 2010s USA
In the 1930s in Italy, if one spoke out against the government, black shirted men would visit to have a discussion. The purpose of the discussion was to point out the errors in one's thought. Part of this discussion involved the person in error consuming a large quantity of cod liver oil and experiencing the laxative effects before being dumped in the middle of the town.
So it is not the first time that fascist have used faeces against their political opponents.