Related:

• 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... ...more than once, you have woken up recalling a dream in some programming language.
• You know you've been hacking too long when... ...in a dream, you are walking down a path (using PostScript's pathforall) and get woken up by a closepath.
• You know you've been hacking too long when... ...when you can't wake up in the morning because you forgot to push a return address on the stack the night before.
• You know you've been hacking too long when... ...you wonder why you can't just go
  leep 28800& and go on with your hacking?...
• You know you've been hacking too long when... ...you realize you have never seen half of your best friends.
• You know you've been hacking too long when... ...you're doing laundry, and you think
  ouch * <or> make clea...
• You know you've been hacking too long when... ...you hear your alarm, but can't seem to get fully awake until you successfully page your left arm back in from swap space.