I'm in the same situation with a barely-nine-pound yorkiepoo, 16 months old, so very active. Hawks sit in the trees and watch us, and sometimes "buzz" pretty close over my head. Owls, coyotes, the whole bit. We live across the road from the woods. He only goes outside on a six-foot leash with me, and trust me...sigh...we are outside a lot. Seven or eight times in a 16 hour day, a mixture of 15 or 20 minute potty runs with long walks totaling around two and a half to three hours of walking outside daily. He has the run of the house of course, and we do a lot of vigorous playing--chase, tug, fetch, keep away. Lots of visiting outside with other people and dogs who are around. I think he gets enough fresh air, exercise, and socialization, but I just can't get anything done--writing projects, music practice, etc. Every time I start to get "in the zone" the dog wants to go out again. Not sure if it's a situation or a problem...I realize a dog is a lifestyle..but seems like I should be more productive in other ways. Have considered some kind of roofed dog run, sturdy enough to protect against predators.( I've always been nervous about little animals left alone out in the yard since a cat got into my rabbit's pen years ago. Valiant rabbit fought with the cat, and was so scratched and bitten that he had to be put down.) Wondering if anybody else has done a roofed run, what you made it out of, and how it worked out. (Mowing, getting inside to pick up poop, etc.)