RTM

RTM: /R-T-M/  [Usenet abbreviation for `Read The Manual']
   1. Politer variant of {RTFM}.  2. Robert T. Morris Jr.,
   perpetrator of the great Internet worm of 1988 (see {Great Worm,
   the}); villain to many, naive hacker gone wrong to a few.  Morris
   claimed that the worm that brought the Internet to its knees was a
   benign experiment that got out of control as the result of a coding
   error.  After the storm of negative publicity that followed this
   blunder, Morris's username on ITS was hacked from RTM to
   {RTFM}.