Vaping Marijuana: What Are the Risks? Rehab Buy THC Vape Carts in Phoenix, AZ Superior Dispensary Student in Possession of Three Vaping Devices Containing THC: On November 24, a school administrator at Henry E. Lackey High School became aware of a student in possession of a vaping device. The dirty, dangerous secret of California's legal weed Los Angeles Times Concern is growing about synthetic cannabinoids found in THC vapes stronger, riskier, and unpredictable. These substances sometimes called fake weed have been linked to seizures, paranoia and even Vaping weed is popular, but there are many unknowns about its safety : NPR