AH used to be a high functioning A, but he was fired six years ago from his job. He still claims it was because the company wanted him to put in 60 to 70 hours a week. In reality, he was leaving the house for work at 8:30 am, (when his hangover let up) coming home at 3:30 so he could start drinking by 3:35. Given it was a half hour drive that doesn't come close to 40 hours for which he was salaried.
After several months he found another job which lasted two years. He insisted seeing a doctor an hour away and refused to schedule appointments on his regular day off. So every appointment was another day off from work. Emergencies? Nope. He routinely went to the doctor's office to have the wax cleaned out of his ears. It wasn't as if this would be hard to schedule, because he the same weekday afternoon off every other week and the schedule was set at the beginning of the year. He was laid off because business was slow, but he sure made the decision easy for the boss.
He found another job though, and he seemed to like it at first. Then he injured his leg while he was drunk, trying to cut up a huge log. The leg didn't heal well, and he ended up at a wound clinic every couple weeks. So, he was late to work one day every two weeks. They likely would have let that go, but now he has admitted there were other problems. His boss complained that he spent two hours on the internet. AH was in maintenance - there was nothing that require two hours of research on the internet. I don't know what else was going on, that's just the only thing he's admitted to. He was laid off in March. He has been careful to only apply for jobs he won't get to keep unemployment off his back, and only the minimum number to fulfill the requirements. Job three lasted a little more than a year.
So he's not really high functioning any more, and at 59 is not high on anyone's list for hiring. Add to that his hands shake from the time he gets up to the time he starts drinking, and he perspires alcohol now, and he probably is reluctant to take a job that interferes with the schedule he's adopted (drinking by noon, slurring his words by 3:30 in the afternoon) the prospects aren't good.