What's busking? If you are juggling, or doing anything with fire, the polica will bust you for busking! That is something you DO NOT want to have happen. A huge polica will sit on you until the car arrives to take you away. I am not kidding. They actually do that.
I met a fire juggler in downtown, he said he had to keep a careful eye out (how he did that without losing sight of his flaming torches I have no idea).
Tengo cuidado,
Martín