I had a college professor who was retiring at the end of the year (in the early ’00s). Instead of holding a final, he invited the class to a local bar around lunchtime. When we got there, he had already ordered more than a dozen pitchers of beer.
There were 14 of us, and at least half were underage. We proceeded to get wasted with him telling us various stories from his career. He didn’t get into any trouble, I got an A in the class, and it remains my greatest college class experience.