Sadly, I can't. I've quit partaking in that about a month ago. I'm finally clean for the first time in 2+ years. Now I'm applying for a crapload of jobs. I don't really want to start up again, either.
Just don't get too heavily involved with it, and it's fine. The same goes for alcohol. The occasional drink is a-ok but if you become an alcoholic, your life goes down the shitter.
I'm just happy I got out before I was fully immersed. Once you use it heavily for a couple months, there is no turning back. I'm glad I quit, at least for awhile. Alcoholism is horrible for you as well. I know one guy who spends over $200 a week on booze, blacks out every night, and still has a liver. By the way, this guy is 27, worked fast food up until this year (welder now), and got an 18 year old pregnant who is supposed to be expecting in mid-september.