My point (and I do have one) is that the OP was making a big assumption as to why this was happening, one that contained at least a hint of justification. My point is that you don't necessarily need the explanation provided to explain the behavior. Let us not automatically assume the behavior is provoked.
But even if it was, the difficult people aren't going away. All that can change are Comcast's policies, corporate culture, management style etc. All things internal to the company. It doesn't matter what the provoking incidents are, nor do they serve as a justification — since it is never acceptable to what was done.