We just rearranged our pig pen and built them a new trough and waterer. My husband keeps there pen spotless all the time. We feed them twice a day and we increased there feeding they are breeder pigs we have had them sinse last september. The problem is when we changed there pen they went nuts. they are tearing there pen up chewing and scraping on the walls they changed there pooping location. all this started when we changed there pen. Is this normal. Do pigs not like change. These pigs are usually very calm and are like dogs they gets lots of attention. This is the first time I have seen them act like this.