There are several examples of cash rewards for rat hunting like in Jakarta [1], but the "classic" version of where this went wrong is the "The Great Hanoi Rat M

There are several examples of cash rewards for rat hunting like in Jakarta [1], but the "classic" version of where this went wrong is the "The Great Hanoi Rat Massacre" of 1902 [2] where rat hunters would just chop off live rats' tails to score the reward instead of killing it, because it would diminish their future income. [1] - https://www.theguardian.com/cities/2016/nov/21/jakartas-rat-eradication-movement-public-offered-cash-reward-for-live-rats https://www.theguardian.com/cities/2016/nov/21/jakartas-rat-... [2] - https://www.atlasobscura.com/articles/hanoi-rat-massacre-1902 https://www.atlasobscura.com/articles/hanoi-rat-massacre-190...