Yes, this is neither a joke, nor practical.
I suppose if wasting a lot of baloons, causing (albeit small) increase in enviromentally damaging waste, causing inconvenience, and generally coming across as a bunch of *****s is a "joke", then "ha ha".
Grow up and take some responsibilites.
Take a look in the mirror.
Yes, but I never became an idiot.
It was a pathetic waste of time, money, and not to mention the inconvenience of whomever the room belongs to.