Terrified visitors ran for their life as highly trained zoo workers assembled to deal with a life-and-death emergency: one of their lions had escaped.

Every moments count as, armed with tranquilliser guns, nets, and leashes, zoo workers do a White Stripes and turn the hunter to the prey (recommended listening as you view the below).

Well, that's the scenario, anyway. The folk at Tobe Zoological Park in Japan take training very seriously, realism less so.. In reality it was all a drill, involving a chap dressed up in a furry lion costume pretending to escape.