1) Samuel Edwin Ashby
Pharmaceutical chemist Ashby was found guilty by the Statutory Committee of the Royal Pharmaceutical Society of Great Britain for misconduct on 25 October 2006. His name was removed from the register of pharmaceutical chemists. Ashby made a lovely record of inappropriate behaviour at 5 pharmacies. Supplying the wrong medicine to patients, taking oxazepam and other drugs for his own use, calling female colleagues and customers arrogant cows or stupid bitches, telling the manager to shut up and piss off, physically assault staff members with iron bars, using offensive language and ignore the code of ethics.
The alchemist and physician wandered from town to town through Europe in the 16th century. Quarreling with everybody everywhere he came, and carefully preserve his reputation as an arrogant person. He could often be found on the streets showing off with his knowledge while being drunk and wearing the same clothes for several months. His disciple Oporinus wrote that Paracelsus was an irreverent, a glutton, and a drunk.
3) Joyce Gilchrist
Forensic chemist Gilchrist falsified evidence for 15 years in many cases. On the basis of her testimonies several people were sentenced to death and 12 have already been executed. Not very kind of her.
4) Colleen Brubaker
Police chemist Brubaker stole drugs from the Philadelphia Police Department in order to satisfy her addiction. Several drug dealers walked back out on the street because the evidence was gone. It's hard to deny an addiction when such a photograph exists.
5) James Watson
Nobel prize winner and world champion in the art of saying stupid things.