Hi my brother's rabbit has been getting waste stuck to her behind and not washing it off. She did this once before but my brother managed (with a lot of difficulty) to wash it off and even cut off some of the fur around the area. It has happened again only this time my sisters rabbit squeezed his way into her run by digging under it. He is un-neutered and so is she but that is why we kept them separate. Anyway we did get him out as soon as we noticed but think he may have done the business before we got him out. Now there is the added difficult of her possibly being pregnant and she is a little bit aggressive at the moment. Can anyone tell how we can clean all the waste off and what we can do to stop it from happening again?