I'd add to that a third, option C: the desire for novelty. Our curiosity is insatiable, and selfish -- often putting itself before our physical wellbeing. And there's no questioning that 'mind expanding' drugs pique our curiosity. Well, do they really do what they claim? Are You that one statistical anomaly that is predisposed to negatively react to that certain drug? Will it set you on a path you would have otherwise never thought to consider, much less take?