Alcohol is good, unless you are alcoholic. Guns are good, unless you are a murderer. Medicine is good, unless you OD on it. Vehicles are great, if you pay attention. Big Macs are good, unless you eat so many that it makes you tired, slow, and repulsive-looking.
Everything is like that.
From Samizdata on alcoholphobia:
There is only one kind of professional 'alcohol educator' worth listening to, and they are called sommeliers.