I'm trying unsuccessfully so far lol, to train my new mini potbelly pig to use the box. I had shavings in it at first. Bad idea lol. Big mess. I have newspaper in it now, and as we speak, she is taking it out and tearing it to shreds having a ball lol. Should I use just a plain box with nothing in it at all? What has worked for any of you guys? Also, I know they don't take physical punishment, I have been setting her in the box when I catch her in the act of going but haven't had the blessed event of her using it for the first time yet. Any tips?