this is what i can tell you i know for a fact. i have been smoking pot for ten years now+-. i have learned that 1. if your will power is not strong enough it will make you lazy. 2. it wont kill you. 3. will it lead to other drug use? again like with my first point if your will is not strong enough. 4. is it morally wrong to use? again if your will power is not strong enough it could cause you to make such decisions. 5. will it make you hungry and sit in front of the tv pigging out for a few hours? you bet your ass it will. look the point i am trying to make is that with a little common sense and some responsibility and moral fiber there is nothing wrong with a person taking a hit or 2 in the privacy of their own home after a long day of hard work. but remember to not let yourself think that there is ne thing in this world you need to get by. we were born with everything we need in life to succeed. so no it is not a sin.