Well I don't have a child since Im 15 years old :P, but usually I get in trouble for staying up on the computer at 3 in the morning on a school day, he takes the computer away from me and the next night I just turn all my lights off and go on it

If he caught me smoking tobacco he would ban me from the computer for a month, if he caught me smoking cannabis he would get a hammer and smash my computer... My best defence for that would be to show him the cannabis FAQ on this site but he won't listen. I have no opinion in our house... thats what 24 years in the navy does for ya!