Doesn't even need to be an iv. A spray will do: http://en.wikipedia.org/wiki/Oxytocin#Drug_forms http://en.wikipedia.org/wiki/Oxytocin#Drug_forms (in fact, I'm

Doesn't even need to be an iv. A spray will do: http://en.wikipedia.org/wiki/Oxytocin#Drug_forms http://en.wikipedia.org/wiki/Oxytocin#Drug_forms (in fact, I'm guessing that oxytocin is what this guy is spraying around so that the lions he's playing with don't decide to eat him: http://www.youtube.com/watch?v=-kjWBgA81LM http://www.youtube.com/watch?v=-kjWBgA81LM see minute 0:57)