Ok, so I may have went off my rocker, long story very short, I'm looking at fostering a 12 year old Dog Aggressive APBT. He probably doesn't have that long and I'd like to give him a good end to his life. (There is another person interested in fostering him and her home would be more ideal as she doesn't have other dogs, waiting to hear if she can do it or not.) If she can not take him, I might foster him. The thing is I work and my own dogs are crated and left loose in the house while I'm gone, they sleep with me. This senior is only bad with other males, so far. So I'd be rotating him and Judge. I don't want it to truly affect Judge much, obviously it will to a degree. I'm thinking an Exercise pen in the spare room for the senior with a top on it, although I highly doubt he can jump it...but to be careful. Then there would be a door between him and Judge. IDK. I don't want a senior dog to be crated too much or locked up too long either. So.....Just trying to figure out if I could make it work and be fair to him and my dogs. Advice, opinions etc.