They weren't only showing off their enormous fortune; they also needed to get away from the unpleasant filth that massive royal banquets created. Palaces, such as Henry VIII's Hampton Court, had to be continuously evacuated so that the accumulating heaps of human feces could be cleansed. The smell was so bad that some palaces were not even be entered by the king or his guests. The need for this practice should be obvious: if a great number of people are eating the same food, they are going to produce waste products. In the case of royalty, these products were highly toxic if they were not properly disposed of. It is estimated that, in Elizabeth's England, 10,000 pigs a day were slaughtered at her lavish celebrations; that's one pig for every person at the banquet! The bodies of animals killed for food usually become fertilizer after they die, but the body of an animal that has not been processed contains harmful bacteria that can contaminate soil and water sources. In addition to the problem of sewage, large numbers of people congregating together also produced a lot of dust when they talked or laughed. If this dust was not cleaned up regularly, it would cause respiratory problems for those exposed to it daily. Finally, there was also the issue of security. When royalty went out of their castles, they often didn't know what kind of threat they might be facing.