Both studies use intranasal inhalers to deliver oxytocin to the subjects. I doubt that you would be able to deliver sufficient quantities by wafting it in the air. If anything, it would have a stronger effect on the stop car dealers and pick up artists themselves, so THEY would trust YOU more :)
About the wikipedia article: when I mentioned the effect of oxytocin on maternal behavior above, I didn't mean specifically on breastfeeding or lactation, but on the general care that is given by mothers to their pups (such as grooming, bringing them to their nest, etc.).
It is interesting that the author describes three ingredients for psychopathic behavior, and that he was missing the third: abuse during childhood. In rats, the quality of maternal care was shown to cause long-lasting effects in the brains of the offspring, particularly in areas that respond to a neurotransmitter called oxytocin:
Rats that receive high levels of maternal care when pups have higher sensitivity to oxytocin in certain brain areas. This is significant because oxytocin is implicated in prosocial behaviors, such as pair bonding and maternal behavior.
Recent experiments with humans showed that the inhalation of oxytocin increases people's ability to trust and empathize with others. So, my guess is that a 'normal' oxytocin system might be able to counter the negative antisocial effects of the first two ingredients described in the article. The author might want to take a look into his own oxytocin system next.
The key insight is that poor people feel that they lack control over their condition. Thus, any marginal effort is perceived to be 'useless'.
If you don't feel like checking the above link, read the following excerpt and draw your own analogies:
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In part one of Seligman and Steve Maier's experiment, three groups of dogs were placed in harnesses. Group One dogs were simply put in the harnesses for a period of time and later released. Groups Two and Three consisted of "yoked pairs." A dog in Group 2 would be intentionally subjected to pain by being given electric shocks, which the dog could end by pressing a lever. A Group 3 dog was wired in parallel with a Group 2 dog, receiving shocks of identical intensity and duration, but his lever didn't stop the electric shocks. To a dog in Group 3, it seemed that the shock ended at random, because it was his paired dog in Group 2 that was causing it to stop. For Group 3 dogs, the shock was apparently "inescapable." Group 1 and Group 2 dogs quickly recovered from the experience, but Group 3 dogs learned to be helpless, and exhibited symptoms similar to chronic clinical depression.
In part two of the Seligman and Maier experiment, these three groups of dogs were tested in a shuttle-box apparatus, in which the dogs could escape electric shocks by jumping over a low partition. For the most part, the Group 3 dogs, who had previously "learned" that nothing they did had any effect on the shocks, simply lay down passively and whined. Even though they could have easily escaped the shocks, the dogs didn't try.
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