She loves dogs and is not great at impulse control. So any time we are out and there is a dog (all the bloody time, I.e.) she takes off to pet the dog. First, this isn't safe and one day a dog is going to attack her. Second, it isn't fair to dog owners. No amount of explaining that the dog might not be friendly, that she shouldn't run off (also a problem at times) makes any difference. It's like she doesn't even hear us. So I have explained yet again, and told her that if it happens again I will have to put her in reins which she will hate.
I don't have any other options do I? She is often oblivious to instruction at the best of times, but this is a particular problem because it is dangerous and it is our responsibility. Most of these dogs are on leads, not just roaming free.