Peanuts by Charles Schulz for December 20, 1954
Transcript:
Linus sits on the floor smiling as Charlie Brown blows up a balloon. The latter says, "Watch, Linus...I'll show you how to blow up a balloon...<br> <br> He shows Linus the finish product and says, "There! How's that?"<br> <br> He gives the deflated balloon to Linus and says, "Now, let's see you do it..."<br> <br> He looks on in puzzlement as Linus blows a square balloon.<br> <br>
“Blow square breaths,” they said.