I am 18 and have smoked since i was 16. i have always used my own money to buy smokes and now pipes and tobacco. I do not smoke in the house except for once at night in my room with windows open and incense burning. I do not like "hiding" this from my parents because they have asked me numerous times if i do as a joke and seriously. i fear their reaction because i live with them to cut down college costs and i dont want to insult their intelligence by "lying" anymore. should i leave well enough alone or tell them?