This is another comic that basically happened in real life a few months ago.
The cats were sleeping peacefully on the couch, when suddenly Olive woke up and realized that her foot could reach Hazel’s head from where she was laying. So the only reasonable thing to do was to kick. Of course, Hazel wasn’t taking it and began to fight back.
This went on for about a minute, until the two of them got tired and returned to their afternoon nap. As a side note, the middle panel on the bottom row is one of my favorites of the series so far.