Many subjects showed nervousness & large number showed extreme tension: 'subjects were observed to sweat, tremble, stutter, bite their lips, groan & dig their finger-nails into their flesh'. 14 participants displayed 'nervous laughter & smiling'. In post experimental interview they explained they were not sadistic & their laughter didn't mean they were enjoying shocking learner. 3 participants had full-blown uncontrollable seizures-1 had violent convulsion so research session stopped.