Jonathan Dunne launched "Tube Chat?" campaign to get silent commuters talking, and he has, but they're not saying much nice
The tube network has been the venue for a good many films over the years, including quite famously An American Werewolf in London - where a commuter is stalked by the wolf down unrealistically empty corridors. However, another film ...
One American created 'Tube Chat' buttons to encourage public transport conversation. It didn't go down well.