My late friend Steve had a cat named Sam. Sam was a tough old alleycat who got along with Steve quite well. He even got along with other people if they fed him.

Every morning Sam would jump on Steve's chest around 7 a.m. and lick Steve's face to get him up. One day, just to see what would happen, Steve didn't awaken but laid in bed watching Sam through half-closed eyes.

Sam rubbed his head against Steve's face. Same gently touched Steve's nose. Nothing.

Sam sat back on his haunches, apparently in thought, and then gave Steve's face a full-force, claws out, swipe.

Yes, Steve awakened.