“Aggressive impulses are intensified to the point of
complete unruliness, hunger becomes voracity, and the
‘naughtiness’ of the elementary school child turns into
the criminal behavior of adolescence.  Habits of
cleanliness acquired during childhood give way to
pleasure in dirt and disorder, and instead of modesty
and sympathy we find exhibitionistic tendencies,
brutality, and cruelty to animals”
Ana Freud