That's true, Iseme. Another person with a different make-up could take exactly the same amount and convince themselves they're 'clucking' and dire things will happen unless they get another hit soon. So, while you're gardening, they're out scoring and, like all good self-fulfilling prophecies, getting authentically addicted. It takes at least 9 months of pretty determined use to develop a physical habit and, if you leave it 72 hours between doses often enough so you can leave it 72 hours, even then you avoid actual dependency. Certainly in the early stages, 'addiction' is psychological and you can argue it's mainly those with an 'addictive personality' who wind up strung out.