The road to hell is paved with good intentions; it starts with "just one drink" and a commitment to be home by 10pm. The middle part is the stuff of legend, but the ending is awful. We've all been there, but the awful didn't learn us - and we keep going back as our curfews are blown.
When I tell patients to curb the sauce, unless we're in a "do or die" situation, I fully acknowledge the nods are little more than polite. It's my responsibility to see you safe, regardless of the situation - and a recurrent conversation I often have after "stop drinking" is "how to handle a hangover".