I have a large fenced in yard with plenty of room to play fetch, sniff, etc. JJ likes to act jealous with other dogs at first, and can be territorial but warms up within minutes and can be quite playful although he is slowing down a bit and likes his long naps! If your dog can become reactive to his initial chihuahua greeting (barking and possible growling initially) then it may not be a good fit. He has always done great in other people’s homes and doesn’t act this way from all sitters that have had him. He only acts that way initially in this home, and it isn’t always either. My other pup Gus is a very loving dog. He is a foster fail and everyday is getting less intimidated by people although he can act scared and bark at first. The will be very gentle playing with small dogs, laying on the ground to play with them, and will rough house with the bigger dogs! I am always willing to do a meet and greet prior to booking.