Threaders are sometimes required to floss with dental braces, fix retainers, and bridge. The camshafts were also revised along with valve spring and retainers. Within her castle are Royal Guards known as mushroom retainers. The shogun had 17,000 samurai retainers; the daimyo each had hundreds. They were known for being wealthy and having hundreds of servants and retainers. GM fitted the affected vehicles with redesigned spark plug wire retainers. The "Royal Butlers" in the hotel are descendants of the original palace retainers. Kang whipped up hatred for the landlords and their retainers. Each feudatory would also provide his own armed retainers. Each knight would also provide his own armed retainers. In addition to officials, teachers, merchants, farmers, artisans, and retainers, there were many other occupations. A "house" included the extended family of the trader, including retainers and slaves. His tomb contains the remains of 318 retainers who were buried with him. Surrounding the birdman were several other retainers and groups of elaborate grave goods. Chengjiao's remaining retainers and families were executed by Zhao Zheng.