Exposure to cigarette smoke found to increase cancer risk in dogs Can dogs get high from secondhand smoke? What to know GreenState Is It Okay To Vape Near My Pets? All Pet Animal Hospital Secondhand smoke and e cigarette aerosol exposure in dogs and cats: A scoping review with implications for smoking cessation among pet owners 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