"That wouldn't happen either, Mac. Tom couldn't defy me because you can only defy an authority, and I'm not an authority."
Mac shook his head.
"You won't convince me, old chap. A boy like Tom has to be dealt with with a firm hand."
I studied his face for a time.
"You know, Mac," I said, "you puzzle me. You're one of the kindest decentest chaps in the world, and yet you go leathering poor Tom Murray. Why do you do it?"
"You must keep discipline," he said.
I shook my head.
"Mac, if you knew yourself you wouldn't ever whack a child."
This seemed to tickle him.
"Good Lord!" he laughed, "I could write a book about myself! I'm one of the most introspective chaps ever born."