So I went searching for an example I knew about where this farmer caked a bank in manure. Turns out a lot of people have done similar. Just look at the videos from this search:
The so called “dirty protest” during the 1980s Hunger Strike.
Reading all these comments makes me want to check if the Geneva convention needs an update to rule out poop warfare
Not a historian, but at one point the UCLA-USC rivalry was so fierce that some intrepid students rented a helicopter and tried to dump 500 pounds of cow poop onto a statue. The plan backfired, with the updraft of the copter sucking in most of the poop. It rapidly covered the occupants of the copter and, upon hitting the giant fan, was distributed as a fine mist across the campus.
Viet Cong would smear punji sticks with shit to cause infection in a wounded soldier.