A friend of mine has a pbp. She is young, maybe a year or two. She had a pen, but it flooded in the recent rain, so the pig has been loose in the fenced backyard. Not a problem, really, as she has been a really sweet pig. She'd root some on our legs, but not much. Suddenly though, she has started biting. It's only if you sit down, and only our shoes. What is going on? I suspect she is asking for food, but the owner doesn't think that's it. Any ideas, and what is the proper response to a (painful) chomp on the foot? Thanks!