Can you imagine being a contractor, trying to do your work and having someone telling you that they don't need this or don't have to have that? How about telling you that all paint is the same? Or asking you to be quiet. REALLY? Contractors are there to do work that you previously asked them to do! You asked them to do the work for you so you either didn't have to or because you don't know how! With that being said, please be considerate when making comments! They know what they are doing... after all, that is why you hired them, right?