Clyde's never let me really scritch his head. He'll allow stroking, up to a point. Try to scritch and you're sure to get a good hard nip. Tonight, he discovered how nice scritching is. He was tired and sleepy and feeling cuddly and I seized the opportunity and once I started, he was like, "OH! Oh, that's NICE." He turned his head this way and that and closed his eyes and almost purred.

It was so cute. Stubborn little stinker. He was the same way about me stroking his back for a long time, too, until I caught him unawares and he found out it was nice after all.