The punk rockers, whale-savers, and anti-homophobic skinheads sing in Gaelic, explaining how to bake a vegan cake in the same way they would describe the construction of a hand-crafted bomb. The best Oi! group of all times –and one of the most famous in anarcho-punk– has never stopped, since 1981, to violently yell about ecology and anti-fascism for the masses with the same binary efficiency.