Oh really?
Fun fact: A child's habit of hurting animals could be an early warning sign of Conduct Disorder, which, if not corrected early, might develop into Antisocial Personality Disorder which is commonly referred to as psychopaths/sociopaths. However, not every child who harms animals will develop ASPD, it depends on other factors like environment and upbringing.
My mistake! That's not a really 'fun fact', at all. Σ( ￣□￣||)
It was in the case of a neighbor I once had as a child.
and thats how a sociopath is born