unfortunatly god gave us the power of free will. The ability to chose a path, your sister chose a path that where Marijuana is illegal and therefore bad. your not going to change her mind or your mother's(if she is told). you got caught, and must face the facts. you have to lay low, and what where you doing with a bong where you could get caught? again we make choices should have left the bang somewhere safe. i can't use a bong so i only have a glass pipe wich i keep well hid. point of this is think, and i hope shit works out for ya.