Related:

• You know you've been hacking too long when... ...you see a flock of birds and try to figure out the algorithms that determine their movement.
• You know you've been hacking too long when... ...you don't care whether C or C++ is compiled or interpreted.
• 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 can remember your ethernet hardware address.
• You know you've been hacking too long when... ...you look above the television for a title bar to find out the name of the program you are watching.
• You know you've been hacking too long when... ...you stop by the grocery store on your way home, and write your check out in hex.
• You know you've been hacking too long when... ...you test a program
  and it fails, so you jump into the editor, look at it, jump out, recompile and test (without making changes) and it still doesn't work, so you jump ....
• You know you've been hacking too long when... ...after writing a big report, you try to backspace in a pen and paper letter.
• You know you've been hacking too long when... ...
  you want to retract something said in haste, and think C-a C-@ C-e C-w...