Description:This rhino at Tokyo's Ueno zoo can smell freedom. But zookeepers are prepared. The papier mache rhino escape is all part of a drill to prepare the zoo for an actual animal emergency. And even though far more sluggish than the real thing, the rhino got a little too close to one employee. Zoo director Toshimitsu Doi says the paper mache rhino was used to create a more realistic effect.(1:30)