Better if your parents didn't know or quit cause your goin to have a bad time and hate your parents for it. You may have a snitch around careful who you talk to and don't keep your stuff in their house hide it somewhere else. Don't go home stoned and don't brag with your peers some people like "your parents" will never accept the fact you smoke. If it continues just quit till your 18 and even then they may call the police, mind your own business.