My daughter, and our family went to a petting zoo not long ago, the two little baby girls that are my granddaughter and great-grandaughter were having a ball. We took them to where the pigs were sleeping and they were allowed to pet them and we took pictures. The docent who was leading us told us that pigs are the cleanest animals of all, they will not deficate or pee in their own area. They do not eat a lot, nor do they eat everything and anything as most people think. The reason that they get in the mud is because it keeps them cool and keeps their skin from itching. They are not stupid animals, they are extremely bright. The panic in this case is causing the people to act less brightly than the animals in question.