Originally Posted by
soberlicious 
Would you agree that there is an amount of substance that could alter one's decision making?
Clearly there is, it's really self-evident. If it were not true, we wouldn't have drunks continuing to drink to blackout, or doing ridiculous embarrassing things, we wouldn't have drunk drivers, we wouldn't have innumerable instances of domestic violence and fights involving drunk people, etc. I wouldn't use the words "lack of control", but clearly there is a reduction in control applied. "Inhibition of control caused by the degraded decision making abilities" is closer, I think. I can't imagine that anyone here hasn't experienced this first-hand.