while the modern "vigilante" is often considered feral, the notion that they can't be fully domesticated is not true. vigilantes used to be extremely useful farm and village pets, completing various errands ('adventures') and carrying out justice for the peasants. with the implementation of the modern justice system they were replaced by the much lower quality "cop" breed of law enforcers (a popularized mixed breed of palace guards and the common European goon). before their breeding was explicitly outlawed, the vigilante was a carefully maintained and highly standardized class of hero, so with the vast documentation of their breed standards there have been numerous studies able to replicate the breed and implement it back into living alongside human families with great success