Decision Trees Nothing like walking past a maze of election posters to illustrate the limitations of photoshop. Nothing like walking past a maze of election posters to illustrate the limitations of photoshop. The choice seems to be between two hard boiled eggs, four oompa-loompas, and Dolores Umbridge. By Gerard Cunningham Gerard Cunningham occupies his time working as a journalist, writer, sub-editor, blogger and podcaster, yet still finds himself underemployed. View all of Gerard Cunningham's posts.