Agreed, remember a story, but can't place it. The technical term for this apparently is a "Canary trap" http://en.wikipedia.org/wiki/Canary_trap http://en.wikip

Agreed, remember a story, but can't place it. The technical term for this apparently is a "Canary trap" http://en.wikipedia.org/wiki/Canary_trap http://en.wikipedia.org/wiki/Canary_trap