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Derby's dose was a form of torture used in Jamaica to punish slaves who attempted to escape. According to Malcolm Gladwell in his 2008 book Outliers, "The runaway would be beaten, and salt pickle, lime juice, and bird pepper would be rubbed into his or her open wounds. Another slave would defecate into the mouth of the miscreant, who would then be gagged for four to five hours."[1] The punishment was invented by Thomas Thistlewood, a plantation owner, and named for the slave, Derby, who was made to defecate on the victim.[2]


  1. Gladwell, Malcolm (2008). Outliers: The Story of Success. New York, NY: Little, Brown and Company. p. 282. ISBN 978-0-316-01792-3.
  2. Tate, Thad W.; Jordan, Winthrop D.; Skemp, Sheila L. (1987). Race and Family in the Colonial South: Essays. University Press of Mississippi. p. 74. Retrieved February 23, 2009.


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