Jokes: You know you've been on the computer too long when ...

When you are counting objects, you go "0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D...".
When asked about a bus schedule, you wonder if it is 16 or 32 bits.
When your wife says "If you don't turn off that damn machine and come to bed, then I am going to divorce you!", and you chastise her for for omitting the else clause.
When you are reading a book and look for the space bar to get to the next page.
When you look for your car keys using: "grep keys /dev/pockets"
When you look for your homework using: "grep homework /dev/backpack"
When after fooling around all day with routers etc, you pick up the phone and start dialling an IP number...
When you get in the elevator and double-press the button for the floor you want
When not only do you check your email more often than your paper mail, but you remember your {network address} faster than your postal one.
When you go to balance your checkbook and discover that you're doing the math in octal.
When you dream in 256 pallettes of 256 colors.
You're writing a homework assignment, and get the end of the line in the middle of a sentence, tack on a '\', and continue writing on the next line.
You try to sleep, and think ... "telnet xxx.dreams.heaven"