I mean, however close we might treat them as, they're still fundamentally diferent animals Since they can't throw up or burp, something that produces enough ga

I mean, however close we might treat them as, they're still fundamentally diferent animals Since they can't throw up or burp, something that produces enough gas (More than a regular soda) could in theory kill a rat, but just make a human slightly inconvenienced, or on the same idea, you could wrap the poisson on an emetic agent to make it safer while not affecting the rat at all