If he knows it was you, ask him if he has a problem with what you did. If he does, ask him why. After listening to his BS tell him you expect him to conduct himself with the utmost professionalism or you will see to it that he never flys again.

There is no excuse for flying drunk. If you end up with a drunk co-pilot/captain, encourage them to call in sick and seek help from ALPA for their problem. Under no circumstances do you fly with the guy. If they refuse to call in sick, you call in sick. Just make sure the other guys knows what you are going to say to defend yourself when the call from the CP office comes.

Our profession does not need any more drunk pilots f'ing it up for the rest of us.