Let's see now. He goes on the wagon for a few months, then he has a bout, so he's crashed and burned 3 times in the last 6 months or so. This last time, he was on his way back from Vegas, over the ocean already, when his liver decided to shut down. He collapsed in the airplane in the air like at 33,000 feet up and started to vomit blood. The pilot had no choice but to turn around and return to San Francisco, where he was taken off the plane and sent to the nearest hospital. He had been partying the whole 5 days vacation in Vegas. After 4 days in the hospital and a 2 pint blood infusion/transfusion, he was allowed by the doctor to fly home. This time the doctors were able to diagnose the condition. The previous two times the doctors at home were not able to diagnose the cause; they thought he had a bleeding stomach ulcer.
So, don't be a sponge; drink intelligently socially.