Bullfighting is certainly one of the best-known-although at the same time most controversial-Spanish popular customs. This Fiesta could not exist without the toro bravo, a species of bull of an ancient race that is only conserved in Spain. Formerly this bull's forebears, the primitive urus, were spread out over wide areas of the world. Many civilizations revered them; the bull cults on the Greek island of Crete are very well known. The Bible tells of sacrifices of bulls in honour of divine justice.
Do not be alarmed by a dirty floor in a bar. It is completely acceptable and normal to throw things on the ground in bars. Most of the time a dirty floor means a good bar!