The introduction of the "Coontruck" garbage collection system was a disaster. Programmed to act more or less like real raccoons (and, rumor has it, controlled by actual raccoon brains implanted in the machines), it took very little time for the four operational Coontrucks to decide that slow moving humans counted as garbage.
With disturbing cleverness the coontrucks plucked sleeping people out of houses through open windows, crept up on homeless camps on their rubber-soled paws, and sometimes merely stood immobile until the curious and unwary, thinking the metal behemoths were sculptures, ventured within reach.
Over a hundred people were swallowed alive and digested by the Coontruck recycling systems. In at least one case an entire car with multiple passengers was swallowed whole, the metal of the car surviving the digestive process though little else did.
The devices weren't so much out of control as misprogrammed, but the public outcry caused the program to come to an end after only one night.
It was not all in vain, though. Though the program was tainted in the eves of the public, the military saw...possibilities.