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As I have always understood it ""U"" people are never sick or unwell. Once in a lifetime, they may admit to a ""chill"" after which any self respecting ""U"" person is expected to promptly die (preferably quietly), be put into a coffin and be buried in the churchyard. A well born person never suffers from an ailment (bravely endured) passes gently away, is placed into a silken casket or interred in the cemetery.   "