Signs your co-worker is a computer hacker:
Everyone who ticks him or her off gets a $26,000 phone bill.
Has won the Publisher's Clearing House Sweepstakes three years running.
When asked for their phone number, they give it in hex.
Seems strangely calm whenever the office LAN goes down.
Somehow gets HBO on their PC at work.
Mumbled, "Oh, puh-leeeez!" 295 times during the movie "The Net."
Massive 401k contribution made in half-cent increments.
Their video dating profile lists "public-key encryption" among turn-ons.
Instead of the "Welcome" voice on AOL, you overhear, "Good Morning, Mr./Mrs. President."
You hear them murmur, "Let's see you use that VISA card now, Professor "I-Don't-Give-A's-In-Computer-Science!"