Residents of Gahanna, Ohio have worriedly been following reports about a lion loose in their vicinity. Police have fanned out to search for the creature, but with no luck. Now some are beginning to suspect that the lion sightings were just a prank, perhaps engineered by local college seniors. Ohio is, of course, no stranger to non-existent wild beasts on the loose. Those with a long memory might remember the Paulding County Hyena that terrorized people back in 1858. But the greatest escaped-animal prank of all time was the Central Park Zoo Escape of 1874. On the other hand, the Gahanna Lion might suddenly turn up. Here in Southern California we have to deal with mountain lions wandering around all the time. (Thanks, Rita)