Based on my cat's dream of catching squirrels, they would taunt him from outside our windows. One day, when we opened the front door, he chased one up a tree. However, due to his lack of front nails, he leaped and hugged the tree with sheer determination, managing to ascend only a few feet before dropping down like a potato.

A sketch done years ago, would like to get back on that horse and keep a regular doodle book.
Some of the best ideas come from those playful sketches.