Over his career with '' The New Yorker '' the magazine published 819 of his cartoons , many of which involved animals . His first successful entry was published on January 3 , 1977 , and featured a man wearing a robe at an office desk in a room filled with chickens . A cartoon with the caption " This island is n't big enough for two cliches " showed a school of fish attempting to crawl onto the shore of a desert island populated by a man and a lone palm tree . Cartoon editor Robert Mankoff called him " one of the most popular " cartoonists at '' The New Yorker '' during the 1980s and 1990s and " one of the most consistently funny cartoonists we ever had " . Cullum 's was the first cartoon included in the first illustrated issue printed after the September 11 attacks , with the caption " I thought I 'd never laugh again . Then I saw your jacket . " One of his most requested cartoons features a man lecturing a cat with the caption " Never , ever , think outside the box " . His most recent cartoon appeared in the issue dated October 25 , 2010
September 11 attacks
September 11 attacks
Leo Cullum