Pot is 100% not addictive. You may become mentally reliant on the drug, but in no way, shape, or form is it addicitve. I'm not positive on the stat, but it is something like this:
It would take a few hundred pounds of burning marijuana and straight inhallation of marijuana smoke for 3 days without a single breathe of fresh air to have an overdose or become addicted.
Some may say, well, then there is a chance that it is addicitve, but in reality, those numbers are not possible to achieve.
I personally don't think that marijuana is bad, but I just wish it isn't as serious an offense as it is now.