I have a theory that I should probably run by an evolutionary psychologist (an actual field of study). I think we have so many people with emotional problems because our brains have not yet adapted our early fight-or-flight responses to the conditions of the modern world. This disconnect between the biological and the environmental is, in my extremely uninformed opinion, why you have people who crack on the Maury Povich show when they see balloons or something.
We can act like tough guys if we want, but we all experience irrational paranoia. Not all of us collapse like Juno Temple's Alicia in Sebastian Silver's quite extraordinary film workout 'Magic Magic.' The film opens with young Temple visiting her cousin (Emily Browning) and her cousin's friends in Chile. It's her first time out of the country, and her shyness and inexperience manifests in odd ways. (I've never seen someone shower in such a unique position before.)