Iv killed gold fish cause I wanted to see if they get high, I dint know they would die I just thought they would swim funny. I blew bubbles of smoke at em they died dont do it. but yeah I know lots of old dogs that have smoked and drank their whole lives. I know this one dog hes so old and he only goes after bud light in the can or bottle he dosnt care. but if your drinking dont leave the can or bottlle any where where he can get to it cause he seeks out drunk people to dink their beer even if it means knocking it over. hes slick for the bud, I dont drink bud so I never worry he just smells and walks away