You guys are making it sound like a punishment, or something to do when you get depressed.
we're gamers. games should be fun and silly. we can do better than that.
Ideally, the conditions should be:
* things that happen with some regularity (but not all the time)
* have some level of excitement/satisfaction
"finish the drink" should trigger on things that are particularly satisfying.
For instance:
* take a drink when you draw your whole deck
* finish the drink on a turn when you play a card that you gained and then drew with overdraw