What the hell... A former graduate student at Stanford University was arrested for attempting to poison her classmates after spiking their water bottles with a chemical that causes burning in the mouth and throat.
Former Stanford grad student accused of poisoning classmates
26-year-old Xiangyu Ouyang, a graduate student from Singapore studying cancer biology, was charged with four felony counts of poisoning after secretly dumping paraformaldehyde into her classmates' water bottles.
Last fall, authorities began an investigation when several medical students working in a university lab complained of irritation and burning after drinking from their water bottles, which had been left out.