I apologise for providing an intro so lacking in context but I, and the person who submitted it for inclusion, know nothing else of it. If you can add some background, please do so in the comments below. That said, even without context I find it incredibly charming.
Transcript follows. Image courtesy of Daniel Wilson.

Image: Daniel Wilson
Transcript
TO THEHOUSE MANAGERGraham Chapman
I would like to point out...
that you never write to me
Signature Eric Idle
Room No. 127
(late 119)
PLEASE HAND TORECEPTION CLERKGraham Chapman