American Shorthair Cat

　　The first rule is to immediately reprimand on the spot. When it does something wrong, you should loudly scold it right then with words like "No!" or "Hey!" Of course, the cat doesn't stop because it understands your words but because it is startled by the loud noise. If you do this repeatedly, the cat will gradually associate this action with loud scolding and find it troublesome, so it will stop doing it.

　　Taking the cat back to the scene of the "crime" to lecture it after it misbehaves is completely useless since cats are forgetful animals. Even if it is scolded for something it just did, it won’t understand why.

　　The second rule is to educate with patience. It's not that after scolding today you can allow it tomorrow; rather, you should always patiently criticize with the same attitude. If the owner gives up midway, all previous efforts will be wasted. The cat will become conceited thinking, "Anyway, I will be forgiven soon."

　　The third rule is to absolutely never use physical punishment. If you hit the cat casually, it will develop fear towards the owner and a self-abased personality. Because a cat’s body is much smaller than a person’s, hitting it can easily cause injury.

　　The fourth rule is to give immediate and ample praise when the cat behaves well. Although a cat doesn’t understand the words, it clearly distinguishes between scolding tones and praising tones. When praised, the cat's mood improves, gradually enhancing the effect of training. (Source：PetsZone)