When you call something one thing and it turns out to be something else entirely. Like “playing” with a puppy or a small dog, aggravating it and laughing at it. That is cruelty disguised as “play”.
If you would do that, you would do the same to a child. Turning them into abusive children, bullies without friends except others like themselves.
Jesus never taught anything except tolerance and patience with others. Being a bully for any reason is unacceptable. If you were ever the object of a bully and you didn’t like it then why would you want your child to be one? Being a bully and racism are learned at home from parents who think they are doing their children a favor or teaching them “just how it is”.
You think you are making them tough but they are just learning a behavior which could get them killed in the future. God doesn’t like bullies whether it is in the form of slavery or oppression He will make them pay for whatever they have done. Life is too short to be cruel and if you don’t know Jesus then you need to turn to Him for your salvation soon because He is coming back. If you are left here after He takes His Bride to heaven, you may find out what kind of bully Satan and his group can be. The seven years of the Tribulation will not be a good time, so make sure that you are on the winning team. Give your heart to Jesus and turn away from your “friends” that encourage your behavior now whether they are family or just friends.
Hurting people physically or emotionally is another form of being a bully. It doesn’t prove that you are tough or strong, it actually shows that you are weak and afraid because you are imposing your will on others in a way that they have to take it or leave. In the case of a child or a dog they really have no choice. Seek healing for your soul from Jesus soon because we will all answer for our words or the wrongs that we have committed one day.