Pilot fish is working the help desk late one night -- his favorite time for it, since the office is empty and things are usually pretty quiet.

But not tonight. The phone rings. It's the IT director. He's worried that his PC may have acquired a virus.

Fish is skeptical. There's virus filtering on the network, so getting infected isn't very likely. Why do you think you might have a virus? fish asks.

"I received an e-mail from someone I don't know," IT director says.

Well, as long as you don't open it, it shouldn't be a problem, says fish.

"I opened it and it had an attachment."

Yes, but as long as you don't open the attachment, you should be safe.

"It was a zip file."

OK, just don't unzip it.

"I clicked on it and it unzipped."


"And I clicked on one of the files."

Sighs fish, "I finally agreed with him -- yes, he very well may have a virus."