I have an abundance of extra roos. My current pen is starting to get too crowded. I have a 30'x40' area that I can easily convert to a "bachelor pad" if you will. I have about 25-30 of them. I was thinking about putting them all together until they are big enough to butcher (20-24 weeks). Has anyone else done this? Do they fight and beat each other up? Good idea or bad idea? Thanks.