Alton Towers theme park in Britain has been forced to ban a squirrel from one of its rides, the Sonic Spinball, as its antics pose a health and safety risk. The rodent was said to be causing problems for operators at Alton Towers by getting in the way of improvement work on an attraction at the resort. Workers noticed it riding a revamped roller coaster as it was tested in the mornings and joining visitors who were offered an early go on it before the official opening. Alarms were installed that emit a warning noise inaudible to human ears but designed to ensure the squirrel, nicknamed Sonic, avoids the ride in future.''Unfortunately Sonic's behavior is a danger both to our guests and himself and so we're doing all we can to ensure that he stays away from the ride," Alton Towers sales and marketing director Morwenna Angove was quoted as saying.