Am in general agreement with the ban proposal - other than general good manners, in the underpass linking platforms at Bristol Temple Meads is a fetid outlet that has been serving pasty-shaped ...things to commuters for years, flooding the space with the outgassing of some petrochemical by-product tantamount to 'baked Tramp's flipflop with reconsituted-onion'. Consequently post-6pm the outbound services are full of people who consume the rancid delicacy, usu. messily, and even the new Hitachi trains with actual working vent systems cannot not keep up.