Ding dong merrily on the concourse

For the season of goodwill to all men, there is more than a whiff of stress in the air. I was waiting in a mainline railway station last week for a train showing up as being delayed, since there had been a signal fault somewhere and all of the services had been disrupted. A bit of a pain for all of us, but in one case it turned a suited-and-booted commuter into a frothing psychopath.