Please, cry me a river. Of course you need laws to deal with obnoxious people who live in close proximity to you. There are wars over fences, but the law handles that pretty well now.

The thing stopping your horrible neighbour from making your life painful is that they must have evidence of your wrongdoing. If you "grill up some food once in a while" and smoke from your grill goes into their property, then what's to stop them from deliberately doing the same to you?