A couple of dogs that I have dogsat before includes a labradoodle (over the age of 1) for the past 4 years, a lab/border collie mix (12 weeks) since 2 weeks ago (June 2019), and a yorkie (over the age of 1) for the past 6 years. I understand the importance of ensuring your dog is tired and content to prevent behavioral problems as well as being well fed and hydrated. I will stay with your dog until they are tired and want to rest. I've played fetch for 1.5 hours with the labradoodle because she just kept on going. I understand that some dogs will be nervous or anxious because their owner is not at home with them, but I will treat your dog as my own during the time I spend with him/her.