I watched a gentlemen go outside of the building he worked in and eat his lunch by a small pond, he would take bread to the decoys eveyday for about two weeks. Someone finally explained to him why the ducks were not eating. I just did not have the heart.
As for the police, if someone is trying to hurt you or your family i doubt it will matter if they are duck experts. I say cut them some slack, a really smart person would not be willing to put his life on the line daily for a complete stranger.