what i do is if they are home i smoke in my bathroom or my room (if its later at night b/c my rooms window is infront of the house and ya can tell if the window is open from the street so just incase someone is stopping over i am cool) and i just get on the coumputer or just chill out in my room, the only time i make contact with my family is if i get the munchies or i am getting something to drink.its normal for my family not to see me for days though b/c well...i don't like them. just play it cool and try not to think to hard about it. and you will on day get caught.. there is no way around it so yea good luck man!