There's nothing satisfying in quite the same way as recognizing when I'm on the verge of getting sick and taking all the right precautions to fight it off.
So, licking a 9v battery was totally not that bad. In fact, it was kind of fun, in that "this is an interesting sensation!" kind of way. If you haven't tried it, you should. Preferably with an enthusiastic audience. And possibly margaritas (just 'cause everything's better with margaritas).
Go to this artist's website, click on "Performative Videos" at the bottom, then click on "The Square" at the bottom of the next page. Then giggle a lot.