After a Far Side cartoon featured a chimpanzee referring to Jane Goodall as a “tramp”, the cartoonist received a letter from Goodall’s lawyers calling the comic an “atrocity”. Goodall herself later saw the cartoon and loved it.
Since then, all profits from sales of a shirt featuring this cartoon go to the Jane Goodall Institute. Goodall wrote a preface to The Far Side Gallery 5, detailing her version of the controversy, and the institute’s letter was included next to the cartoon in the complete Far Side collection.