An article in today's Sunday Times on Japan's "professional seducers" set me thinking. (Apparently various companies offer services to people who want to entrap their husbands or wives in infidlity to faciliate a divorce, as well more esoteric services such as contriving "chance" encounters for clients.) At the moment, the companies take on as staff these seducers and pay them in the region of five grand a month each. I think they're missing a trick - they could get the seducers to pay them too, if they pitched the whole thing as some sort of spy game.
Update: also, why are there no counter-espionage services available? You'd think that for a modest fee a cheating husband could have his latest affair checked out by yet another set of experts to see whether she was a known agent hired by his wife to trap him. I guess the industry just hasn't been around long enough yet to generate the requisite quota of disgruntled ex-employees.