The Coopinator was squealing and bouncing at the back door so I let him.
Halfway across the yard I figured out what he was after... There was
a squirrel back by the willow tree.

The arrogant treerat waited until Cooper was almost on top of him before
starting his getaway and it was almost his undoing. Cooper ran up the
vertical tree trunk after him and made it a good 15 feet before he fell off.