Self-inculcation

Horrendous giggles, eager aggressiveness, thoughtless negations, reflexive defensiveness, inappropriate unctuosity, immediate lies.

All of these are learnt, vile habits. Most probably deliberate adoptions, self-taught by frequent repetition. It's forced upon one's early character, the fruit of a choice to incline towards evil rather than virtue in social relations.

That inculcation is like a heel that trampled and crushed blank moral slates that were intended to enable humanity and conscience.