Responsible pet ownership to me means:
1. following the law - registering the dog, keeping it confined on your property, using a lead when out, etc
2. Creating an animal that can survive in todays society
3. in the event that 2 is impossible, being able to manage the animal successfully so that it both enjoys life and so that it is safe.
4. taking the dog to the vet and doing what has to be done - though sometimes this is less than pleasant.