A pensioner claims that she was shouted at by fellow passengers over fears her electric scooter could "explode" mid-air.Susan Alty, 69, was returning to Liverpool John Lennon Airport from Cyprus with her son John Alty, 48, on July 4. She claimed Ryanair said the lithium battery wattage on her scooter exceeded the safety specifications. She claimed that following a back and forth with the airport staff, the pilot decided to set off without the sc…