Only if the reward is more than the cost of breeding the rat. I grew up in Saskatchewan, Canada. While I missed out, my father always talked about turning in

Only if the reward is more than the cost of breeding the rat. I grew up in Saskatchewan, Canada. While I missed out, my father always talked about turning in gopher tails for money. My recollection is that my older brother was able to do this, and he got $1 per tail. At that price, even in the 1970s, I doubt you could have made any real money raising gophers.