In this excellent Start the World podcast Jack Donovan interviews K.D. Mathews (http://kdmathews.com) about giving your dog a sense of purpose.

This is a nice episode in Jack's series. he is also uploading his podcasts to YouTube as well.

http://www.jack-donovan.com/axis/2017/03/the-way-of-dogs-stw-episode-20/

https://www.youtube.com/watch?v=3w0xHIvKVGk