'The Dog Show: Two Centuries Of Canine Cartoons' is an exhibition, curated by comics historian Brian Walker, featuring over one hundred different characters documenting the fascination that cartoonists have had with our furry friends. Photo: Handout In a 1970 Beetle Bailey comic strip, the character known as Sarge berates his uniform-wearing dog, Otto, for a paperwork mistake. "Think, Otto, think!!” Sarge says. "We can't all be Snoopy, ” a dejected Otto replies. This confluence of two iconic comic strip dogs is on exhibit along with dozens of other images at the world's largest cartoon museum as part of a new presentation of the history of canines in the world of cartooning.