In the Syriac Orthodox, Armenian Orthodox, and I think the Coptic Orthodox churches, on Great and Holy Thursday (Maundy Thursday), just before the vespers for Great and Holy Friday, the bishop, who is often very elderly, will wash the feet of the boys who are typically tonsured as Psaltis or in some cases readers, usually ages 8-12, which is a tradition beautiful to see, the greatest serving the least, in clear physical discomfort (it is not easy to ask a 75 year old bishop to get on his knees to do that); of course the act is at present symbolic because you can darn well bet the parents have ensured the feet of those youths are quite clean, although historically, this would not have been the case due to the poverty of the Oriental Orthodox churches, the desert terrain, and in many cases, the youth not having shoes or at best having sandals, due, once again, to reasons of poverty, so the act was more than symbolic given that it would have been impossible for anyone to get to the church without some degree of dust or dirt, especially the youths.