some other tips:
1) don't sell to any random person, keep it close, because once you go commercial and everyone in your town knows about you, then it's a disaster waiting to happen.
2) If you're only a small time dealer (selling less than $500 a week), then the rewards don't outweigh the benefits. Don't think you're hot shit cause it's not a matter of if you get arrested it's a matter WHEN will you get arrested. Have a liason buddy who represents you, and try not to do the dirty work yourself.
4) be suspicious if a random guy at the gym asks for an INSANE amount of juice at once, especially if he's a first time customer.
5) BE PARANOID, cause some people are bitches and they'll rat you out as soon as they're caught.
6) Keep a clean house!
7) Have lawyer readily available on call.