Andrew. About 30-years ago I had borrowed my son's motorbike, and was pottering along somewhere North of Swindon. A big, dark cloud was looming somewhere to the East of me so I parked up and sat down to watch it. A twister dropped from the cloud and was heading vaguely towards me. Being innocent in such matters I sat and watched as several hay-bales were sucked up and tossed many yards to the side of the column. It was obviously time to move-on, so I did.