Well I'm not a lawyer but in school I was one in an excercise to show how the courts work. I was a defense and it was based off of a real case
A father let his kid have a party and went upstairs to watch tv. He saw someone poking around in the fridge for his beer and told him to stop. later he heard noises and went downstairs to find some kids drunk. He called the police to send home the drunk kids but one girl snook out and got behind the wheel. She rammed into a car killing a husband and father. She was arrested but the father of the host of the party was sued for 1 million by the wife for not watching the party.