Don't do that then!

   [from  an  old  doctor's  office  joke about a patient with a trivial
   complaint]   Stock  response  to  a  user  complaint.  "When  I  type
   control-S,  the  whole  system  comes  to a halt for thirty seconds."
   "Don't do that, then!" (or "So don't do that!"). Compare {RTFM}.

   Here's  a  classic  example  of  "Don't  do  that  then!"  from  Neal
   Stephenson's  In  The Beginning Was The Command Line. A friend of his
   built  a  network with a load of Macs and a few high-powered database
   servers. He found that from time to time the whole network would lock
   up for no apparent reason. The problem was eventually tracked down to
   MacOS's  cooperative  multitasking:  when  a user held down the mouse
   button  for  too  long,  the  network  stack wouldn't get a chance to
   run...

[glossary]
[Reference(s) to this entry by made by: {RTFM}]