Public Urged To Eradicate Rats Before The Rainy Season

One of the best ways to reduce the rat population is to trap a few rats and put them together in a cage.

Hunger will get the better of them and they will start eating each other.

When you have perhaps only a couple of rats left release them (they are now cannibal rats with a taste for their own)

Do this on a larger scale and surely the rat population "those that are members of the rodent family" will surely be reduced.

Perhaps a similar approach might be taken with the two leg variety.

You beat me to the punchline, When they put up the big levee aand Bkk becomes an island, maybe we'll see a large scale biped version of that.

Speaking of islands, Easter Island had cannibalism rampant in it's miserable final years - before the modern era. a microcosm of what could happen on our finite little planet, perhaps?