Anti-wobbling table dropjes

This afternoon we enjoyed a hightea at le pain quotidien. The table was a bit wobbly so I was looking for a beermat to put under the shortest leg. To my surprise I saw someone before me had already taken care of this, but the thing used had slipped free...

It was a piece of licorice...

I just slipped this piece of candy back under the leg and the table was solid as a rock..!