They are also useful because people can't see your facial expressions.Like the 'oh shit' face surgeons pull when they cut through something important by mistake.
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2 Can Chunder Word to your mums, I came to prod bums,
Mon 7 Jun 2010, 12:57,
archived)
I think if I were in surgeryI'd be more than worried enough that I could see the surgeon at all than with what face he's pulling. Bloody anaesthetists, I knew I shouldn't trust them.
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boris the spider,
Mon 7 Jun 2010, 12:59,
archived)