Before Common Sense Was Even Less Common

This is from a Dash's Dog Food brochure from the 1950s. Timing is still everything, and there is still a place for a mild swat on the rump or a loud sound as an aversive. With a puppy, it does not take much!

What was too often left out of dog advice tracts like this, however, was the need to give the puppy something it could chew on. And no, not a tennis ball (which is too often surgically removed later on). Instead, try a flat hide chew of appropriate thickness for your pup, or a Kong with a little frozen cheese whiz sprayed inside, or a rope chew toy.
..