i was also right behind him when the " incident " occured....i know how his seat came off ..... as the back started to slide out on what we all know is a classic highside, Glyns arse cheeks tightened around the seat in a vain attempt to hang on to the bike !!!, this failed of course as the high side was gonna have its day!! but Glyns arse cheeks refused to let go of the seat ripping it from its very hinges high into the sky........
I always knew Glyn was a " tight arse " ............
Phil