You must recognise some.
Sean Connery? Alex Salmond? Billy Connolly? Jackie Stewart? Lulu?
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Neptune A dole queue dosser and foul mouthed chav., Mon 11 May 2009, 18:10,
archived)
I don't remember ever seeing any of them in the street,
so empirically, no.
I don't think I'd even recognise Simon Munnery, and I've spoken to him.
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Moon Girl Technologies horrendous beanbag, Mon 11 May 2009, 18:12,
archived)