People who violate spiritual laws (the Golden Rule) have no idea what they are doing.
In the next life, that which these proprietors saw fit to do to others will be the blueprint for their "forever home".
That's why your brother should not pay evil for evil, but be cautious and stay above board in his attempts at recourse. Otherwise he would not only draw trouble to himself, but he would also cancel out some of the noise that these owners are unwittingly planning to experience in the next life. :)
You do justice to your namesake!
“Again, when a righteous man turns from his righteousness and commits iniquity, and I lay a stumbling block before him, he shall die; because you did not give him warning, he shall die in his sin, and his righteousness which he has done shall not be remembered; but his blood I will require at your hand.
Nevertheless if you warn the righteous man that the righteous should not sin, and he does not sin, he shall surely live because he took warning; also you will have delivered your soul.”
+1000