I played once in my office's yearly tournament where we had the whole course to ourselves. Most everyone got loaded while playing. There was drinking before, during (thanks to those handy guys running around in golf carts with snacks and booze, which I personally didn't believe when I first saw they carried booze with them too) and then after at the pig roast. That's the first and only time I went in the 4 years I worked there.
It was chaos and no fun at all for me. I think the people who got toasted were having a great time, but it was just like being at a party where you haven't caught up yet and everyone else is ahead of you by a few hours, so they're practically legless and you are stone cold sober. Put in the added danger of carts driving all over the place, people hitting balls off into the stratosphere as well as at each other, and there is no way I would do that again.