It's important to take your pet to the vet.
Mark's dog swallowed a large stone and is coughing up blood all over the house.
Mark wants to stop having to clean up blood in his house.
Mark takes his dog to the veterinarian to have the stone removed from the dog's stomach.
Mark puts his dog on a chain in the yard.
Mark's dog undergoes surgery to have the stone removed and makes a full recovery.
Mark's dog continues coughing up blood and then dies overnight.