Wright did not get along well with other draftsmen. He wrote that several violent events happened between them during the first years of his apprenticeship. Afterwards many other draftsmen showed very little respect for his employees as well. In spite of this, "Sullivan took [Wright] under his wing and gave him great design responsibility." As an act of respect, Wright would later refer to Sullivan as "Lieber Meister" (German for "Dear Master"). Wright also formed a bond with office foreman Paul Mueller. Wright would later engage Mueller to build several of his public and commercial buildings between 1903 and 1923.