By Bonnie Stiernberg Sounds like someone’s mama never told him, “Son, always be a good boy, don’t ever play with guns“: a man in Arkansas has been arrested after shooting a hole in a portrait of Johnny Cash on the side of a 50,000-gallon water tower to make it look like the Man in Black is peeing. According to TMZ, Timothy Sled was arrested for shooting a hole in the crotch region of the Cash silhouette — causing water to leak out and give the appearance that the legendary musician is relieving himself. He’s charged with two felonies: criminal mischief and impairing the operation of a vital pu…