Fun topic.
I've done it a few times. First of course, was with my XC team a long time ago. I suppose we did it at least once a season. Then, NYE race once. That's was probably the hardest I've run after shot-gunning 3 beers. After work-related drinks and needed to get my run in after. Not being able to get a cab home, so had to run home; happened 2-3 times. And then my favorite time to shun.... drinking a few after a good Sunday morning road race and then take a nice run a few hours later to get in some miles to fill the training log.