A pair of Australians earned the nicknames "Dumb and Dumber" for indulging their curiosity about whether an air rifle "would penetrate their skin or would hurt" by shooting each other. Answer: Yes. [UPI, Image: Olga Popova/Shutterstock]

Update: As the comments below note, this post originally said a pair of police shot each other, when in fact a pair of regular people shot each other. #regrettheerror