I will run with your dog!
I don't have much experience with caring for strangers dogs but I do have experience with my parents dogs for 10 plus years. They are two chihuahuas and I frequently come over to take them out and stay with them/play with them. My parent in laws also have a medium/large dog that I play with, (on occasion) will also walk with her. I love animals so much and would love to build more ...