Jo,
As a cat lover, I LOVE that! Somebody sent me this in an email a long time ago and I saved it so I could go back and read it over and over. It's hilarious! And anybody who has cats, will "see" their cat in this "cat behaviour". I can just look at mine and am convinced that she's thinking all these thoughts! Or.....she could be thinking, "have I slept for 23 out of 24 hrs. today or has it been 23 1/2 hrs."? Or- "should I sleep here in one of the human's chairs or go sleep on their bed"?