Football always had a dark side: Hooliganism. For instance when Barcelona played Alavés in February 2017: 50 armed Alavés supporters attacked 20 Barcelona fans outside a bar. Somehow, nobody was killed. But when it turned out the two teams would meet again in the national Spanish cup final – with more than 50.000 supporters in the streets of Madrid – everybody prepared for the worst.

One thing football fans have in common is that they like to party. So, we created a bar, right next to the stadium, and invented a brand-new currency for this bar only. The currency was: Peace. In this bar you couldn’t pay with money – you had to reach out to the so-called enemy and take a selfie together and show it in the bar. In short: Pay With Peace.