I know this is probably a DUMB question, but bear with me. We have goats and chickens. My DH says he has always wanted pigs, but we both agree that every place we have ever been that has pigs has a terrible smell. I know that pigs are naturally clean animals so I must assume that the owners didn't keep their pens clean, or they didnt' have enough room for all the pigs (overcrowding). how do you all keep the smell down, and also, what kind of shelter is best for pigs?