To My Boss,
All the time I have worked here, I have felt overworked, underappreciated and most definitely underpaid. Quite honestly I think you are lacking in even the most basic of management or people skills, not to mention business accumen. In short, you are a **** and I would rather be anywhere else on earth, doing anything else than working here for a moment longer.
It is therefore with regret that I hereby give you notice that I wish to resign from my position, subject to the notice period stated in my contract of employment
Yours sincerely,
A N Other
Oh wait you said your job...