As a whole, I would not recommend you as owners giving your dog CPR. It depends on the breed where you do the compressions, let alone giving breaths; it's not like a human mouth. Their mouth is a lot harder to get ahold of there and give breaths to. That's where going to a veterinary hospital for intubation, giving breaths with the equipment we have here, let alone drugs and all of that to be administered, is crucial.

If we are questioning things like perfusion, they've stopped breathing, maybe they've had a heart issue, et cetera, that will absolutely be determined by your veterinarian when you get to the veterinary hospital.

Sudden changes, whether the dog has collapsed or is now bleeding—in those cases, first aid definitely should come into play, and usually by a veterinarian.

Free-choice feeding could make your dog overweight. Some dogs can manage themselves well. They eat enough to be full. But as a whole, I would say most dogs need to be fed on a schedule.