A guest in your home is drunk and is intending to drive home. Do you take the keys off them if they refuse to stay the night or take a taxi?
You see a stranger in the street, drunk and attempting to open the door of his car to drive home. If he refuses your offer of a drive home or to call a taxi do you take the keys off him?
You are drunk and are intending to drive home. A friend takes the keys off you when you refuse to stay the night or to catch a taxi. In the morning are you angry with your friend?
You do nothing when a person you know gets into their car drunk and drives off. In the morning you learn that they were involved in a head on smash and three people are now dead. Do you feel in anyway responsible for their deaths?