Calvin’s smile in panel 2 shows me that he thinks he is really doing a really good job.
When I was about Calvin’s age my folks put up a six foot redwood fence around our backyard.
I took my hammer and knocked out all the knots and as a result there were left dozens of knot holes.
I was very proud of myself and couldn’t wait until my Dad got home so he could fill me with praise.
We spent the next day replacing what knots we could find.
Some of the holes remain to this day, some 50 years later, a testament to my resourcefulness as well as a window to the canyon out back.