"The impact of behavioural treatments is as great as that of medication, and there are no known side effects of behaviour modification," says William Pelham, of the State University of New York at Buffalo.
There is, of course, a great novelistic tradition of children as observers of the darker side of adult behaviour - What Maisie Knew, To Kill a Mockingbird.
"Retail therapy – shopping that is motivated by distress – is often said to be ineffective, wasteful and a dark side of consumer behaviour, but we propose that retail therapy has been viewed too negatively, and that shopping may be an effective way to minimise sadness".
The latest film to explore the darker side of human behaviour is Martin Scorsese's, The Wolf of Wall Street.
Even the snarkier side of digital behaviour isn't beneath nations -- Canada's "trolling" of Russia during the invasion of the Ukraine, posting graphics to help "confused" Russian soldiers escalated from an exchange of "educative" maps to pictures of toy tanks to enable the recognition of enemy forces.
But overall, Jessica Jones has pushed beyond the usual limits of a superhero show by exploring the darker, more desperate sides of human behaviour, aided by black humour and Jessica's permanently raised eyebrow.
And there were even stranger sides to this kind of behaviour: when his mother died, Bruckner commissioned a photograph of her on her death bed and kept it in his teaching room.
Her marriage to Bobby Brown appeared to have introduced her to another side of life, and her behaviour became erratic as rumours about her lifestyle swirled around.
In the summer, the Yazidi population of some 450 people – forced from their homeland in northern Iraq by ISIS – were moved en masse to a site the other side of Ioannina, citing threatening behaviour from elements of the Syrian community.
