Some context on this comic:

Transcript:

In my first year or so of drawing The Far Side, I was scared to death of making mistakes in the artwork. Incredibly, I had never heard of a product called “White Out” (for covering up mistakes) and the smallest screw-up meant starting over. So, as I’ve indicated under each of these cartoons, I sometimes left things out.

I hate drawing this type of rug because I can never seem to make the concentric circles come out right. I’d get halfway, as shown, and quit.