Can dogs get high from secondhand smoke? What to know GreenState 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 Is it risky to smoke or vape around companion animals? RSPCA Knowledgebase Dogs and Second Hand Smoke The Silent Victims: How Secondhand Smoke Affects Dogs Psychology Today Veterinarians warn that vape clouds in the home are just as harmful as regular smoke. Pets can develop allergies, coughing, and breathing difficulties, and citrus flavored e liquids are especially toxic, settling on fur,