Exposure to cigarette smoke found to increase cancer risk in dogs Is It Dangerous To Vape Around Pets? Cronulla Vet Clinic One of our customers has had first hand experience of this recently. One cigarette butt can contain enough nicotine to poison a dog. Especially puppies and smaller breeds. What can happen Keeping Your Pets Safe from Nicotine Poisoning American Lung Association Your dog can't tell you they're breathing in secondhand smoke, but their lungs feel it. Protect your pets by keeping your home tobacco free. #QuitForThem #NationalDogDay Study shows most dogs exposed to vape liquid are unharmed Veterinary News VetSurgeon