On the second weekend in November, balls of pitch (a sticky, black substance made from coal tar or petroleum) are stuck onto the horns of a bull and set on fire. The bull is then released onto the streets and can do nothing but run around in pain, often smashing into walls in an attempt to douse the fire. 

https://secure.peta.org.uk/page/18887/action/1

#ToroJúbilo #FireBull #ThisMadnessNeedsToStop #Spain #AnimalActivism