In the late 60's Canadian psychiatrist Eliot Barker sought permission from the Canadian government to obtain a large batch of LSD. He then found a bunch of criminal psychopaths, lead them into a bright green room he named the 'Total Encounter Capsule' and asked them to remove their clothes and 'socialise' for 11 days.
What did the LSD-fuelled criminal psychopaths learn from the naked psychopathy session? How to be loving, empathetic or compassionate? Well, no - the group actually became better psychopaths. They worked out how to fake these feelings and 80 percent re-offended, as opposed to the usual 60 percent.