Interesting, and I didn't think about that. The only issue I see is that it needs two animals. This could be a learned experience. Children can think they are helping people even when they are not. Then, associate that action with receiving help. My dogs are a great example of this. When they run around wanting to be a part of things and only create choas.

It feels good receiving help. To do good then is based on what is understood about good. So we reciprocate.