You know the expression "use it or lose it"? Well, apparently that's the case for a Chinese man who has spent the last 12 years pretending to be mute. A convicted murderer, the man who is known only as Mr. Zheng, evidently lost the ability to speak after extreme underuse of his vocal chords. So, he was able to successfully avoid answering certain questions pertaining to his alleged crimes while in prison. Unfortunately for Mr. Zheng, pretending to be mute for 12 years came with a hefty price.