This week, Femen protesters drenched themselves in simulated blood to express their outrage over Russian president Vladimir Putin's treatment of Ukraine.
But this isn't the first time that fake blood has replaced ice-cube-filled water to get a political point across.
In September, a Philadelphia youth council called In Defense of Black Bodies posted a blood-bucket video on YouTube to oppose racism in America.
The images are accompanied by the song "Strange Fruit" by Nina Simone.
In Defense of Black Bodies charges the United States with "committing genocide against black bodies by means of mass incarceration through the prison-industrial complex, the preservation of segregated, resourceless communities, the forced sterilization of incarcerated black women, the unlawful murder of black citizens by police and white vigilantes, as well as the ongoing terrorism inflicted on black communities by the militarized police state".