Is drinking alcohol in moderation or casually a sin?
If you don't adopt the myth surrounding tobacco use in general, is dipping or smoking a sin?
I couldn't prove from the Bible that any of these is sin.
I don't really drink, not because I believe it to be wrong but I have never tasted an alcoholic beverage that I really liked.
Drunkenness is another matter. That is spoken of in scripture.
As for tobacco, well that is totally a man made sin.
Every argument against tobacco could be made against Coke, Cake, Ice cream and McDonalds.
If something being unhealthy makes it a sin then every-time you eat a candy bar, you are in sin.
Of course gluttony IS a sin and is just as bad as drunkenness.