I was fortunate enough to come upon Joe Vitalie's book 'Zero limits' many years ago and it certainly made a difference in my life. One of the main lessons I learnt about was the Hawaiian method of dealing with difficult people called 'Hoponopono' It may seem weird and 'New age' but believe me it really works.
Even if it seems strange isn't it worth a try if somebody is causing you stress? Go on try it, you might get arrested for the alternative. Below is a link to a
great article that explains all about this easy answer to solving relationship problems.