I know it is long but please read all of it. Needing Advice. So my sister has a teenager and she is an absolute handful. She just turned 16 and they threw her a big birthday party to celebrate. For some reason she has gotten into this attitude where she thinks she is everything and isn't thankful for anything anyone gives/does for her. The other night, Cassie, (my sister), told Brooke (the 16 yr old teen, her daughter) that she wasn't allowed to leave the house to be with her boyfriend or be with him at all why she was out taking her other kids to friends' house and taking her littler one to spend time with Grandparents. Cassie came back and Brooke was not there. She called her and she answered and said she was at the park but not to come and get her because she was just with friends and not to worry about her. Cassie wasn't going to let that slide because she knew how caniving Brooke was and wasn't going to let her do something without checking up on the situations. Cassie pulled up to a parking spot on the side of the park where Brooke would not be able to hear the car or see it. She got out and went to go check things out and yes, Brooke was with her friends, but she had failed to mention that all of her friends' boyfriends were there as well as her, and they all were in the middle of a full on make-out session behind the community building. Cassie called all of the girls' mom's to come and get their daughters to leave and punish them, and sent all of the boys home as well. A bunch of cars pulled up as all of the moms filed out of their cars and walked over to where the action was happening. They took their daughters home and I am guessing they were all thoroughly punished. Cassie doesn't know what to do. Brooke is out of control and Cassie says that this can't happen again, and I wouldn't want it to either. She needs help on ways to punish her. She has already taken her car away and she can only go to things her parents will drive her to. Cassie feels like there needs to be a better punishment..so please help!!