Prime Instinct.

Primitive or Primal Instincts:
Dogs swirl around before settling down for a sleep.This is what it use to do in the wild,to cleanup the napping space.Now even in the 4th floor it is doing it before sleep.The Primal instincts and basic instincts are the cause of many good as well as bad things happening in our body and around the society.Any social deviation,that is acting against the decided norms can be morally -legally wrong.We learn or taught to control those primal instincts which is not good for social living.But a minority still unable to come out of it.Internal and external actions are controlled by these Primal BASE instincts.
Goose bumps are one good example of this.It raises the hair to show up ... the body BIG ..when threatened ,like porcupines .It also raises temperature of the body.Excited brain and cold can cause this.We learned to hide this and protect us by the invention of clothing.

Matter is, we all have inside the hidden,dormant primitive instincts,habits engrained in our genes,which may reappear suddenly.Social living,Religion,law,morality created an interdependent and a polished way of living.Most of the evils are because of the recurrence of the ancestral genetic pop-ups ,after generations of silence in the sequence.Atavistic 'hadbadi mey gadbadi' .This is natural, and will sustain Judiciary and Police agency for years to come.Otherwise again jungleRaj.