Resignation letter

For want of better conversation on Friday evening before going home, this is what I would like to have said in my resignation letter in some of my previous jobs:

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Dear Mr Manager,

thanks for nothing. Money is no recompense.
I hope you rot in hell.

Dear So-Called Colleagues,

Despite saying I would, I'll never phone or e-mail any of you ever again.
Deal with it.

yours,
Me

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Of course, my resignation letter from this job will be quite different ... now let's see ...