Samuel “Mad Sam” DeStefano was an Italian-American gangster who became one of the Chicago Outfit’s most notorious loan sharks and sociopathic killers. The Outfit used the mentally unstable and sadistic DeStefano for a variety of crimes, but due to DeStefano’s deranged mental state, the Outfit never let him become a made man.

FBI Agent William F. Roemer wrote of going to Mad Sam DeStefano’s house to question him about mob business. Often DeStefano’s wife would serve the agents coffee and the agents would comment that the coffee had a unique taste to it. DeStefano would claim that the coffee was made from special Italian coffee beans that his wife brewed. Months later Roemer found out DeStefano had been urinating in the coffee before serving it to the agents. Roemer wrote that he could never drink coffee again.