* OutlivedItsCreator: Jeff [=MacNelly=] died in 2000, but has continued under different writers and artists (one of whom is [=MacNelly's=] widow, Susie).
* ReferencedBy: ''ComicBook/{{Batman}}'', of all titles. Prominent editor/writer Dennis O'Neil was purportedly a huge fan, and named ComicBook/ThePenguin's attack-eagles in one annual after Shoe and the Perfesser (which was later carried over into ''ComicBook/TheBatmanAdventures'').