The vape label lie. Last year, I was interviewed about the growing danger of drugs being secretly laced into vape devices, something many users never expect. One alarming example is etomidate, a Oil Vape Pens Vape pens laced with fentanyl, MDMA confiscated from Douglas High School A vape pen confiscated from Douglas High School students contained both traces of Fentanyl and Ecstasy, also known as Molly (MDMA)., These were found in saliva samples collected from the students., So you want to test your MDMA? KnowYourStuffNZ