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 Frontiers Dog and cat exposures to drugs of abuse identified by the California animal health and food safety laboratory system 20132023 E cigarettes and their lone constituents induce cardiac arrhythmia and conduction defects in mice Nature Communications Vaping isn't just harmful to humans it's dangerous for our pets too! The aerosols from e cigarettes contain toxic chemicals and nicotine that can seriously harm pets if inhaled or ingested.