I witnessed one hole in one several years ago. Guess it had to be about 9 years ago since I wasn't able to drink. It was the group playing behind us on a 220 yard par 3.

The guy offered to buy us drinks since we ran over to the hole and confirmed it was in there for them. But alas, none of us were 21.

The group didn't even finish the round. We had 5 holes to play and when we got back to the club house the guy was already stumbling drunk.