The Guardian’s Wendy Grossman takes a look at the tactics used by large stock agencies, such as Getty Images and Corbis, to pursue payment for unauthorized image uses. The article offers several examples of reportedly unwitting, unintended infringements committed by individuals who did not know better—church volunteers, for example. The general focus is on the heavy-handedness with which stock agencies pursue infringers, with tactics extending as far as sending debt collectors to the offender’s offices.