Vigilante behaviour?

Mishlei (26:17) מַחֲזִ֥יק בְּאׇזְנֵי־כָ֑לֶב עֹבֵ֥ר מִ֝תְעַבֵּ֗ר עַל־רִ֥יב לֹּא־לֽוֹ׃  

 A passerby who gets embroiled in someone else’s quarrel
Is like one who seizes a dog by its ears.