Folklore is often passed down orally rather than written down in literature (although sometimes people write down collections of folklore in order to preserve the stories of a particular community). This means that certain elements of folklore can become lost over time if there is no one available to tell the story from generation to generation. People may choose to pass on folklore for various reasons. Sometimes it is done as a joke or in mockery of someone. Often times this is done to embarrass someone publically. There are many examples of this in football folklore. For example, it is said that Athletic Bilbao's nickname, "the White Lions", came about because during the Franco dictatorship years they would invite photographers from French newspaper Le Parisien to their games dressed up as lions (because they were based in Paris). At the end of the season, when they finished last and didn't qualify for the next season's top flight, they would laugh at the photographers outside the stadium and say "the white lions have no fur!". Other times people may choose to pass on folklore to show off their intelligence or to get attention. For example, it is said that manager José Ángel Irazusta used to sing songs while he was training with Athletic Bilbao's youth teams so that everyone would listen to him play music.