If he's working for a plumbing contractor, and is physically doing the work we know a plumbing, he' a plumber. He's not a plumbing contractor. You have to have a license to be a plumbing contractor, but not to be a plumber.

                In the states that I'm familiar with, in order to have a license, you would have to post a bond and show proof of both Liability and Worker's Compensation Insurance. All of those things are expensive, and you wouldn't purchase any of it unless you were ready to engage in the actuall business of contracting.

                The fact that the union in putting out damaging information about Joe would simply lead one to assume that he's working for a non-union shop. That pisses off union officials for obvious reasons.