“There’d been a huge amount of sexual assault at festivals in Sweden for years, and it peaked last summer,” Knyckare says. “It was the first day of my summer holidays and I was there watching the news and drinking cheap wine, as you do, when I heard that yet another rape had been reported. So I thought I’d tweet, and I never tweet, but I did.” The tweet – proposing a festival welcoming only non-men until all men have learnt to behave – got traction, and quickly. “I didn’t think much of it and went to bed, but when I woke up the day after I realised how many people actually really wanted this to happen.”