This snack didn't smile back when it was stolen from a worker's lunch. Instead, it unloosed its hidden fury in the form of an inky surprise. The trap was set by frustrated workers who were tired of losing their sweet treats out of their lunch to an unknown snack-stealing menace. The workers banded together and loaded up a whole lot of Hostess Ding-Dongs with an edible, but definitely not invisible, ink. The culprit turned out to be none other than the plant manager who got a great taste of his…