Whether it's the edit, the starvation, the island, or just reality, there have been some crazies on Survivor who probably should have failed the alleged psych test. Some contestants really seemed to have no business being there on the show. The question is, who is the most psychologically unstable contestant ever in Survivor history?
http://www.ranker.com/list/the-most-psychologically-unstable-castaways-on-survivor/switchdoctor,
Matthew Von Ertfelda
Phillip Sheppard
Shane Powers
Susan Hawk
Ghandia Johnson
Kathleen Sleckman
Jamie Newton
Shambo Waters
Brandon Hantz
Shamar Thomas