Related:

• You know you've been hacking too long when... ...you start dreaming code.
• You know you've been hacking too long when... ...after days with YACC, you start to parse your conversations.
• You know you've been hacking too long when... ...you are having a bad dream (being chased by space aliens, etc.
  ) and you wake up, only to have another bad dream and realize that you are STILL dreaming, and had been dreaming you were dreaming, so you wake up again, and finally wake up once more and realize you were nested four levels deep in dreaming you were dreaming....
• You know you've been hacking too long when... ...you wake up and desperately try to start a compiler so you can use the 15 minute waiting period to sleep some more.
• You know you've been hacking too long when... ...people talk to you while you're trying to work, and you think, "mesg n".
• You know you've been hacking too long when... ...you want to compile busy traffic so that it will run faster.
• You know you've been hacking too long when... ...you begin all of your questions with "INPUT.
  . ....
• You know you've been hacking too long when... ...you order on the phone from a catalog, and start to give the operator your email address.
• You know you've been hacking too long when... ...you start doing stuff like: cc -o a.out foo.c