Cat and Mouse?

Nope it's Cat and Squirrel.   Looked out the window the other day, and noticed that a stray cat had chased a squirrel up into a tree by the pond in the back yard.  The higher the cat climbed the higher the squirrel tried to go.  Finally went out and scared the cat away.  The poor squirrel stayed in the tree for almost an hour,  before coming down.