Vaping devices? Numerous substances are used for vaping, commonly used are DMT or Spice, both may cause hallucinations. Also used lately is a substance called Flakka which is a stimulant similar to Methanphedimine and Cocaine known to cause bizarre behavior, hallucinations and delusions. The vaping devices and multiple cell phones along with Ada and her Lundy not working fit pieces to the puzzle. When someone is using drugs the family (sister) may not necessarily know.