hogs after a little tlc will become just as calm as any other bci. as babies they tend to be a little on the nippy side but that soon fades. i know you dont want anything that is to big. but i would go with a male bci columbian. 5-6 ft tops if you feed right. all of mine are around that size. and are dog tame. also for what a nice hog goes for you could buy a nice hypo columbain. just my .02
matt fisher