I go and get the neighbor's German Shepherd everyday so he can play with my dogs, get some exercise, and a potty break. Each day he picks up a stick and takes it back to his yard.Sue, love it. The dog next store picks up every stick and branch she can find. She is about Lab size. When I was hauling branches to the curb one day, I couldn't believe how heavy they were. Bella, the dog had chomped down on the thickest ones and was pulling backwards. She also chomped them down in a lot of smaller pieces. That took even more trips to the curb.
I let him.
One day I will probably feel guilty and go clean up their yard... but I doubt it.