I have to plead guilty to engaging in drunken behavior on the golf course in my much younger years on one or two occasions when the company I worked for had a tournament. The only good thing was no one outside of the company was on the course so we could only run over each other with the golf carts. It was pretty stupid when I look back on it now but I was the new guy in the office and wanted to fit in.
Now, I will quit a game rather than play in the vicinity of anyone who has had a few too many. If you want to have a beer before the game, no problem - but if you're going to get toasted, please do it off of my golf course. Isn't that why they call the clubhouse bar the 19th hole
Aside from being annoying, whoever said it earlier is right - it's dangerous to everyone on the course including the drunks. Wild shots and tipped over golf carts are not fun. Of course, it is better than something I saw in a lodge's restaurant while having breakfast - hunting season for deer had just started and these two bozos in blaze orange got tanked on bloody marys before heading out to shoot. Amazingly they didn't shoot each other, only a deer (I think). Sorry to go a bit off topic, but I don't like hunting. IMHO, not a sport unless you go out naked and with no weapon, just like your prey.