Always leave on good terms or you could try this one of mine
Dear Mr Preston,
As an employee of an institution of higher engineers, I have
a few very basic expectations. Chief among these is that my direct
superiors have an intellect that ranges above the common ground squirrel. After
your consistent and annoying harassment of my co-workers and
myself during the commission of our duties, I can only surmise that you are one of the few
true genetic wastes of our time. Asking me, a time served Aero space thread thread grinder of 20 years plus, to explain every little nuance of everything I do each time you happen to
stroll on to my section is not only a waste of time, but also a waste of precious oxygen.
I was made up because I know how to thread grind to an aerospace standard,
and you were apparently hired to provide amusement to myself and other
employees, who watch you vainly attempt to understand the concept of "crush and grind" for the hundredth time. You will never understand thread grinding.
Something as incredibly simple as mud still gives you too many options.
You will also never understand why people hate you, but I am
going to try and explain it to you, even though I am sure this will be
just as effective as telling you what a machine tap is. Your shiny new ball point pen has more
personality than you ever will. You walk around the building all day,
shiftlessly looking for fault in others. You have a sharp dressed useless look about
you that may have worked for your interview, but now that you actually have
responsibility, you pawn it off on overworked staff, hoping their talent
will cover for your glaring ineptitude.
In a world of managerial evolution, you are the blue-green
algae that everyone else eats and laughs at. Managers like you are a sad
proof of the Dilbert principle. Seeing as this situation is unlikely to
change without you getting a full frontal lobotomy reversal, I am forced to
tender my resignation.