I found market forces to be quite an efficient regulator last month whilst passing through LCY.
The Euro footy was on, so the one and only bar was rammed with people glued to the box.
Cue me with a fiver to my name, thinking well I wouldn't normally pay rip-off airport prices, but oh what the hell.
Seem to recall the cheapest pint was in excess of 6?
Sobering....