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I heard of a man who had a razor made of Valyrian steel. He cut his head off trying to shave.

George R. R. Martin (2012). “George R. R. Martin's A Game of Thrones 5-Book Boxed Set (Song of Ice and Fire Series): A Game of Thrones, A Clash of Kings, A Storm of Swords, A Feast for Crows, and and A Dance with Dragons”, p.551, Bantam
I heard of a man who had a razor made of Valyrian steel. He cut his head off trying to shave.