You have to read the WHOLE thing... it's not too long...  :)

 Subject:   letter of recommendation

  One day, a project leader was asked to submit a review of one of his
  employees. He wrote the following:

  1)Bob Jones, my assistant programmer, can always be found
  2)hard at work in his cubicle. Bob works independently, without
  3)wasting company time talking to colleagues. Bob never
  4)thinks twice about assisting fellow employees, and he always
  5)finishes given assignments on time. Often, Bob takes extended
  6)measures to complete his work, sometimes skipping coffee
  7)breaks. Bob is a dedicated individual who has absolutely no
  8)vanity in spite of his high accomplishments and profound
  9)knowledge in his field. I firmly believe that Bob can be
 10)classed as a high-caliber employee, the type which cannot be
 11)dispensed with. Consequently, I duly recommend that Bob be
 12)promoted to executive management, and a proposal will be
 13)executed as soon as possible.

   Regards - Project Leader

 Shortly thereafter, the HR department received the following
 memo from the same project leader:

   Sorry, but that idiot was reading over my shoulder while I wrote
   the report sent to you earlier today.  Kindly read only the odd
   numbered lines for my true assessment of him.

          Regards - Project Leader
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