Related Experiment Video
Updated: Dec 9, 2025

The Mouse Forced Swim Test
Published on: January 29, 2012
The Prisoner Who Cried Wolf, and Then Swallowed a Sprinkler Head
Matthew Hysell1, Jennifer Finch2, David E McClendon3
1Spectrum Health-Lakeland, Department of Emergency Medicine, St. Joseph, Michigan.
Case Presentation:
A 37-year-old man presented from jail reporting foreign body ingestion of a sprinkler head. While initial radiography did not reveal the foreign body, subsequent imaging with computed tomography demonstrated the sprinkler head. When confronted with this discrepancy the patient admitted to having the sprinkler head in his possession and choosing to swallow it after his initial radiography.
Discussion:
This case demonstrates the importance of maintaining a high threshold for real illness in situations where there is suspected malingering, a situation not infrequently encountered in the emergency department.
Related Concept Videos
The Stanford Prison Experiment
Milgram's Obedience to Authority
Robbers Cave
Cognitive Dissonance
Obedience
Responses to Drought and Flooding

