[saurik]

We don't even really know that this is what happened. Even if it were, we don't know the context or the tone of the e-mails leading up to this. You are jumping to a ton of conclusions from a post whose goal is just to induce a lynch mob... even the specific quotations, were they actually 100% accurate, are not things I can easily see having been totally reasonable if (and I personally find this much more likely) the contractor was being belligerent and was doing little more than threatening lawsuits and ownership claims in their side of the correspondence (possibly even /before/ there was the alleged billing dispute).