I have a 100 X 75 area w/6'Chained link fence, with a in ground pool.My Wiemerainer loves to swim and run. I'm only 8mins. from the nearest vet. if anything looks funny about your pet I will personally take him to the vet and make sure he is taking care of as if he were mine. If I see something out of the ordinary I will immediately contact you for further information. I totally understand how you feel because my dog is my best friend and I will take care of your dog as if he were mine. I want you to be worry-free and no that you can call me during the day to check on your pet. Thank you for this opportunity. Respectfully, Mitchell W.