Do feel free to play 'Guess the City'
Now it is currently fashionable to mention 'how was the Border service?' when you re enter the country. I have to say ta Terminal 4 on Weds evening, the queue for EU citizens was not onerous (15 minutes) and the man at the desk was efficient.
But...I would have walked through the automatic chip recognition exits with no queue at all if it wasn't for the fact...
They were all shut :-)