Hi Senoufou. I have not tried rats for dinner, but I did have a green mamba come slithering in wanting to join me at lunch one time.(30 kilos of steel pipe on its head kind of tamed it's appetite.) While working in the jungle near Warri one of my local crew used to go looking for a particular palm and get a basin of grubs to fry up to eat. I suppose it is no different to escargot, just a question of what you are used to.
Get hungry enough anything that moves is fair game.
http://theconversation.com/five-edible-insects-you-really-should-try-17672