I had one teen party while the guardians where on their "free vacation" it was a snooping neighbor that called the police and my rebellious teen got scolded by the police and then grounded by his guardians that came back from the trip.
I can understand getting grounded for having a party without permission but it said "for trashing the house" when the only thing different was a pizza that was left out to long!
He is an former paperboy that they well I stole when I just added him to the family so he could have some schooling and build some skills. I wish I could make him appear as their child though.