I've been around dogs my entire life I have one of my own. I have never met a dog that I didn't like and that didn't like me before I watch your dogs I would like to meet you and your dog in person to make sure your dog will get along with me and mine for the time you'll be gone or busy. I live in a house I don't have a fenced in yard but I usually take my dog for a walk at least once a day over to the stream a few feet from my house so she can run and play until she's tired and thirsty. If you have a big dog or a small dog it doesn't matter I've been around and taken care of dogs of all shapes and sizes.