Should I Report An Alcoholic?"
What should I do when I know that alcoholic is putting himself and other people at risk?
Should I report him to the police knowing he is driving home drunk from the pub?
Should I tell the landlord not to serve him and not to give him credit at the bar?
He needs a big reality check. But, should I stay out of it and keep waiting until he kills himself or others because of his irresponsibility?
By not reporting his behavior, you're enabling him to continue, and when he's drinking and driving, he's both a threat to himself and others.
He has not harmed anyone yet, so now is a good time, to report him before anything serious happens.
Start with the bar. Tell them that this is a serious problem and they should stop him from drinking before he gets drunk and not give him further credit. They can also demand that he doesn't drive, call a taxi or call a designated driver to take him home. Tell them that they have a responsibility to their patrons do this.
He probably won't listen, but at least they would be making his life difficult, as well as giving him awareness of the problem.
If he continues to drink and drive, you should notify the police. Hopefully they'll do something, but they have to wait till he'll drinking and driving to charge him.
This is about as much as you can do. Hopefully he'll get the wake-up call before it's too late.