Chaos at the top end of the Piccadilly Line last weekend, with Cockfosters to Arnos Grove closed for engineering work. Nothing unusual there, you might think, but some bright spark decided to schedule the closure for the date of the first-ever match at Arsenal's new Emirates Stadium. Result: lots of upset footie fans.
Still, that's what happens when decisions like this are made by office-bound pen-pushers rather than by frontline staff.
But who was on site to take the grief from the disgruntled non-travelling public? Not the aforementioned office-bound pen-pushers. No - the frontline staff.