Yes--what we are saying is that it's OK--healthy and good--to remove yourself from a potentially dangerous situation (and it doesn't have to be physical danger) BEFORE the dangerous event commences. When he drinks, he's playing with fire. It's smart to get out of the way before the conflagration occurs. And the fact that, on a particular occasion, no conflagration ensued, that doesn't mean what he did was safe. It means you were lucky.
Warning labels on electronics or other potentially hazardous things aren't put there because you will definitely be electrocuted or lose a limb if you don't follow instructions. They are there because they present an unacceptable RISK of something bad happening.