Almost every story ever told about getting busted is when they made a preventable decision. So always think about your actions and what you can do to prevent getting into trouble, but now that your allready in trouble and in your parents house you gotta play it cool for awhile. Lay low, do whatever you can not to get in trouble again. Dont smoke in their house. Definatly never ever take anything to school.Some parents are cool about shit like this and some just arent and it sounds like you got the second of the 2. So you gotta lay their system. Good luck