We have an OEM. He is the only living thing in the house larger than I am.
We did train him in protection. But found out by accident that he will only bite when told to. Not when someone comes in unexpectedly.
A few years ago my buddy came over late in the afternoon. My bride and children were in the back yard, the dogs were inside. We heard some yelling from inside, went to investigate, and he had my buddy pinned on the ground laying on him.
When the white man discovered this country Indians were running it. No taxes, no debt, women did all the work. White man thought he could improve on a system like this.