Whiter Shade of Pale

Do not hire this contractor. He said he had a lot of experience but his work was sloppy leaving places unpainted. He said he would prime any areas between sanding and painting and he did not. Some areas are already peeling.
When we called him to ask him fix the problem he became belligerent and threatening, saying we shouldn't question him since he was a great painter.
We wouldn't return to fix the problems.
I don't want anyone else to have these issues.