For a long time I was told Liverpool insisted on yellow jackets, but when I flew in there it didn't seem to be a problem. At Dundee last summer they insisted that someone accompany us every time we went airside as we didn't have them. This got quite interesting as we were wandering between the flying school, tower, and our aircraft for ages, trying to check weather and sort out what to do (a warm front and basically un-flyable) so we more or less had a personal minder - despite the fact the airfield was practically deserted apart from us. Definitely bureaucracy gone mad.
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Whirly
To fly is human, to hover, divine.