Originally Posted by Often1

What was the crew's specific response to your request that it do something about the animal?

The way to make certain that policies are enforced is --- when it affects you --- to complain. On the spot.

With the new DL policy, if it is prior to the flight being closed, a clear complaint to crew is a good starting point. If you see a dog in the gate area which appears to be out of control, ask the GA whether it will be seated near you because you are concerned for your safety.