I agree, it's usually not biology that makes some people "act like animals" or worse, Amos.   Of all the species on exhibit, humans are the only ones there of their own free will. And while behaviours driven by instinct can be horrific and destructive enough, I don't know of any other 'animal' that 'freely chooses' to act on greed, hatred and ignorance.

As for covering their underwear with leaves, yeah that's pretty cheesy. But it keeps them from being arrested, I suppose. It demonstrates the exclusively human 'need' for modesty. And it DID get a laugh out of me. i>That's gotta be worth something!