Man's best freind can be a pretty good judge of character, and coming upon a kind soul with an open jar of peanut butter may open up memories of less than humane treatment by people who's idea of going for walks are transferring him from cramped squad vehicle too kennel, K-9 Officer signing requisition forms for him and other equipment used in the day too day grind of civil service without consideration of signing out a frisbee or bright red ball too throw too and fro for the puppy's amusement, and a pat on the back of the neck contingent on tearing a perp. a new one upon being released. This particular perp. loves animals and gives petting and treats freely and doesn't like the aggressive, violent behavior he recognises from suspects in animal rescues he assisted animal control officers in liberating animals from in dog fighting rings. Since cops that abuse animals are in the minority, should he be considered a hero for liberating this dig, or spend the rest of his life in prison for kidnapping a police officer?
The senario described in this question is hypocritical in nature based on real concerns I have had while obseving working animals that exhibit signs of stress or a nervous disposition I see every day working on socialization and trust issues with victims of animal cruelty. Brief observations where an animal is exposed too human suffering and lack of sleep can be misinterpreted for abuse without long term one on one observation, so not all eratic behavior has the same cause.