I have to say, I found your article regarding the upscale couple getting "shafted" by the plumber to be truly amazing. I work for an electrical contractor locally, and issue bids for electrical work to be done, sometimes on an emergency basis.
You have slandered a business for doing business. Apparently, the price was agreed upon up front, and then the boyfriend had buyer's remorse after the work was already completed. Unless couples-counseling was part of the contract to fix the toilet, it was none of the plumber's concern.
If they had Lowe's and fifteen other plumbers beating down their door to fix the problem for $20, then they should have had those people fix the problem.
I have made monetary mistakes in the past, and being an adult (albeit not a retired one), I take responsibility for those mistakes. Once, I allowed my ex-wife to purchase a vacuum cleaner for $2000, due to the salesmans hard-pressure technique. Once, I paid a well-driller $500 to "witch a well", which consists of walking around with a stick in his hand saying, "Yep, there's water here."
Was I upset after the fact? Yes. Did I learn something? Yes. Was I blindsided by a bill exceeding what I had agreed to after the fact? No - so I did what was honorable, and paid the sum I had (in my stupidity) agreed to.
To run down a tradesman, who is obviously blue collar, for charging (probably white-collar) people a weekend rate for an "emergency" weekend call, and utterly disregard the responsibility of the couple who bothered him in the first place to bolster your own ego (and column) is utterly reprehensible, in my opinion. I hope the plumber sues you and your organization for slander.
-George Stolz