Peanuts by Charles Schulz for September 17, 1970
Transcript:
Charlie Brown sits on the curb. Linus stands next to him and says, "Snoopy's at the vet's?"<BR><BR> Linus sits beside Charlie Brown. Charlie Brown says, "Yes, he had to stay there overnight for X-rays . ."<BR><BR> Linus asks, "But they'll keep him in a cage or something, won't they? How will he ever stand it?"<BR><BR> Snoopy stands in a cage and thinks, "Here's The World War I Flying Ace sitting in an enemy prison cell . . ."<BR><BR>
Snoopy refuses to give them anything more than his name, rank and vaccination date.