Robert Plott routinely gripped the knob, tugged open the door and barged toward a clear path. That was the plan at least. He quickly walked into a thin layer of saran wrap. Suddenly, he was tangled and trapped. Nowhere to go. Just a wad of wrap to unravel. Another prank victim to his son, Dustin. A practical joker to some, Dustin can be described as goofy once you get to know him. But a…