years ago I had a customer call me up pissed off because the Comcast subcontractor told her that he had to completely redo the entire coax headend because the ends we used were not "Comcast certified". She was mad because she paid us to do the work that in her mind was now substandard.

I was about 10 minutes away on another job and told her "don't let him leave, I am on my way"

when I showed up the installer looked very guilty and was pretty evasive when I asked him to show me these "Comcast certified" ends he was required to use.

They were the exact same ends as what was on the cables, I demanded his supervisor's number and called him.

he apologized and told me that the subs get paid per end and he was just trying to increase his take home for the day.