In 1985 after the Heysel disaster, where 39 people died due to hooligan riots and a collapsing wall, the Boixos Nois raised a banner at the Camp Nou South-end with the text "¡Gracias Liverpool!" (Thanks Liverpool!) and replaced the traditional Catalan flag, the Senyera, with a swastika.
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They repeatedly demanded the resignation of president Josep Núñez, who they saw as authoritarian, and openly defied his presidency through chants and banners on matches.