CUI’s most dramatic example of an alleged breach of one of the requirements contracts is the City’s not buying any dog food from the company during the five- month period. Surely, the company argues, the dogs (police dogs) could not go without food for five months—they would have been driven to roam in packs, eating small children, or even each other; the pathetic starved bodies of the weaker or more fastidious dogs would have littered the Chicago sidewalks. None of this happened. Therefore the City must have been getting the dog food from some other supplier, in violation of the requirements contract.
Judge Posner chats about dogfood requirements contracts.