Garnett's 2004 exhibition "Riot" featured a series of paintings based on images pulled from mass media sources, depicting figures in "extreme emotional states." The painting entitled "Molotov" was sourced from a jpeg found on the Internet that was later discovered to be a fragment of a larger photograph taken by Susan Meiselas during the Sandinista Revolution (1979). After "Riot" closed, Meiselas's lawyer contacted Garnett with a cease and desist letter claiming copyright infringement and "piracy" of Meiselas' photograph. Popular support for Garnett and her artwork, marshalled through a list-serv at Rhizome.org, inspired a solidarity campaign called "Joywar", in which images of Garnett's painting were reposted widely on the Internet, or remixed and circulated in new forms.