Nah, better way
Former co-worker had a book of dirty tricks. One of my favorite: Remove all the outlet covers and dump about a cup of sugar into the wall. (The more you get behind the drywall the better.) Within about a week or so, depending on how many floors they are above ground level, they will have an incurable cockroach infestation.
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Microsoft offers them the one thing most business people will pay any price for - the ability to say "we had no choice - everyone's doing it that way." -- [link|http://z.iwethey.org/forums/render/content/show?contentid=38978|Andrew Grygus]