I have 2 female pot bellied pigs that are almost 2 years old. One is very friendly, lets us pet her and rub her belly. The other will not let us touch her at all. She was a rescue and we believe she was abused in her first 6 months. They both desperately need their hooves trimmed. We tried to trim the friendlier one but it freaked her out and of course we can't even touch the other one. Any suggestions?