I like to treat everyone (including competitors) with respect, but not all of them behave the same way. I have had equipment stolen, advertising magnets on my truck stolen, false online reviews about my company posted, and current customers telling me stories of how the LCO who cuts down the street berates my business to them.
Still, I don't feel any of the above actions are necessary AT ALL. I believe in my work, my clients believe in me, so that settles it.
"Grounds care solutions. Visible results."