One of the houses in our neighborhood just let their dogs crap on anyones lawn. One of my neighbors would pick it up off his yard and put it in a 5 gallon bucket on the side of his house. Well, it rained one day and a bunch of water ended up in the bucket...

Then one day my neighbor peeks out his front window and sees the neighbors dog crapping on his yard. He'd had enough and decided to take action. He grabbed the bucket of dog crap, ran across the street, and poured it out on the door step of the dog owners home and rang the doorbell. The dog owners put up a fence the very next day...

Things have been good since then.