There was a movie, King Rat had a POW(George Segal) selling rat meat.
I read an article about a rat catcher in India. It was about a simple invention to blow smoke down a hole to flush out the rats, and he got a microloan for it ($50).
He doubled his rat production. The big farmers paid a 25 cent bounty, plus he got to keep any rice stashed in their burrows. His family now had enough to eat for themselves AND with the extra his wife sells cooked rat on the street.
He said he will now have enough money to send his kids to school so they won’t have to be rat catchers. All because of a $50 contraption and loan.