Hands

You'll forget it when you're dead, and so will I. When I'm dead, I'm going to forget everything -- and I advise you to do the same.

~ Kurt Vonnegut

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I think it's a good idea to forget to wash your hands when you're dead. Otherwise, eventually, you're just washing bone against bone, and that doesn't sound nice. It's called "bone dry" not "bone washing hands wet."