Back in the day, if you were bad, they'd put you in a tower. If you'd been really, really bad, they'd put you in this tower.
Details are sketchy, but it kind of looks like you'd have to be blended and then some of you would get poured in through the top. Only a bit, mind. So the rest of you would probably just get thrown away. A pretty comprehensive punishment, but also an awesome deterrent.
(They probably didn't have blenders back then, so it was most likely just a pestle and mortar job).