If you have ever been to Bombay (nowadays Mumbai), India you would probably know that it’s an enormous city with dense population where different colorful cultures intertwine. The city is visited by millions of tourists each year who seek “once-in-a-lifetime-experience” and is situated in one of the most popular urban regions on the planet.
Aside from the flashy facts, you should know that Mumbai has been suffering from a severe rat problem for quite a while. At a certain point in time the rat plague got so out of control that in 1954 the Finance minister of India gave an order to allow the citizens of the city to pay their government taxes by presenting dead rats. Killing the rats and turning them in, similar as bounty hunters, turned out to be the most ingenious solution to this terrifying infestation problem.
In 1954 the whole city was overwhelmed by rats and not only that, they were constantly growing in numbers and size, especially near the docks, where they fed off containers with grain.
The method worked very well by paying rat catchers a flat rate for each caught pesky rodent. The heavier the rat was, the bigger the pay.
This technique has proven to be successful for defeating mass infestation problems of all kinds.