For Better or For Worse by Lynn Johnston for September 19, 1980
Transcript:
Michael: It wasn't my fault the water got on the floor.... Elly: It's not the water that upsets me, Mike.. It's your lying about it! How can you tell me that your duck flooded the bathroom- when you know very well that you did it! Michael: .. Next time you pull a trick like this... I'll rip out your squeaker.
As I stated in an earlier comment, substitute the duck for Hobbes and Michael for Calvin and we’re in business!