You know those people who claim to have cured themselves of a smoking addiction by wearing a heavy rubber band around their wrist and *snapping* it (hard) every time they feel the urge to light up? It turns out that for some people, that’s just not a strong enough aversive stimulus. It seems they have to use a cattle prod to get the same effect:

self-administered cattle prod aversion therapy

Or, you know, it could be a kinky slave-training porn thing. Yeah, that makes more sense…

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