O.K. after repeatedly trying to introduce Patches to Porky and Beans and failing I decided to expand the cage and divide it so at least he would have contact with the other two but safely behind a grid wall. (He was on a second level before, with no contact with the other two). Well, now the two that get along are scuffling. Not fighting, but lots of mounting and chasing. Meanwile, Patches is totally unfased by the whole thing and just watches from the other side. Anyone have any insight?