Is Expired Vape Juice Dangerous Can Drug Dogs Smell Cartridges After Opening Student in possession of vaping devices containing THC at Henry E. Lackey High School: On January 22, a school administrator at Henry E. Lackey High School discovered a student was in possession 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. Police dog helps sniff out illegal vapes in Poole