From Retraction Watch: The Indian Journal of Surgery has retracted a 2011 paper entitled "Penile Strangulation by Metallic Rings". The reason: The authors apparently self-plagiarized the report from an earlier 2005 paper. Please insert your own jokes here.
This is why whale watchers are warned to stay 100 yards away from whale feeding areas. Or, as National Geographic's Sven Lindblad put it, "Note to self: Avoid kayaking among schooling herring or sardines." Video Link