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The only time their food look's even remotely appetising is late at night after several glasses and with my spectacles in my pocket.

Do they suppose that after refusing a customer entry to their premises whilst drunk but not causing any problems, those same customers would, once sober, be inclined to ever cross their threshold ever again?

Surely, this would cause more problems than it could ever prevent? I pity the poor sod that has to attempt giving someone a breathalyser it would be like a red rag to a bull!