Japan's Hitachi City Kamine Zoo and local emergency officials conducted an escaped animal drill last weekend. The whole thing was made so much more real by employing a worker wearing a silly black bear costume. From The Mainichi:
The drill was conducted on the assumption that an earthquake registering a full 7 on the 7-point Japanese seismic intensity scale occurred, breaking a glass window in the display area and allowing a bear to escape from its enclosure. Participants drove a zoo employee dressed in a bear costume into a corner using nets and vehicles, and fired a tranquilizer gun. After confirming that the collapsed fake bear did not move, they returned it to its enclosure.