Caveat Geek

Or, "Novel Uses for Network Diagnostic Tools". According to the Register, a column-writing programmer became suspicious that his partner was cheating on him, and used the Ethereal packet sniffer to monitor her online activities. The article is somewhat vague on exactly how, but presumably the tool found evidence of guilt.

The man offered this sage advice to would-be cheaters:

"If you plan to use technology when cheating it's probably best to understand the technology involved better than the person that you're cheating on,"