Dealing with difficult people and situations is at the heart of Christianity, and it's only achieved in our daily practice of walking in the spirit of Christ rather than ourselves.
I say practice because that's what it is; a practice.
I am a confronter type person.
no one get's away with anything, or so I often think. I drive the people I'm around nuts pointing out the injustice of their ways. As a result I often have to find ways to re-build the working relationships around me. Gentleness and kindness are not my best qualities, but no one would accuse me of abuse, just painfully honest.
In any case, everyone has to deal with other people. We don't want to be walked over, mistreated, or taken advantage of , but we also don't want to be that way to others.
I think the first thing is to walk daily in the spirit of Christ. Let Christ lead us and not us lead us. IN this way we need to realize we are not in control and neither are difficult people. Christ is in control.
If we can understand that then this verse should be easy for us. Romans 12:17-21
Repay no one evil for evil. Have regard for good things in the sight of all men. If it is possible, as much as depends on you, live peaceably with all men. Beloved, do not avenge yourselves, but rather give place to wrath; for it is written, "Vengeance is mine, I will repay," says the Lord. Therefore "If your enemy is hungry, feed him; if he is thirsty, give him a drink; for in doing so you will heal coals of fire on his head." Do not be overcome by evil, but overcome evil with good.
We've no cause to avenge anything. We need to drop the idea that we have to "get back" at someone for what they do to us.
One of the problems many Christians have, I think, if being too none confrontational in the right way. We can speak up for what is right without lashing out. Matthew 18:15
"Moreover if your brother sins against you, go and tell him his fault between you and him alone. If he hears you, you have gained your brother."
Just tell someone gently and with kindness. If they get upset then they own that. We need to be mindful of our words to others. Pray before you speak. Our words are more powerful than we sometimes know and we often say more than we need to. You want to freak someone out? Say less. Just make your statements direct and to the point. Proverbs 17:27-28
He who has knowledge spares his words, and a man of understanding is of a calm spirit. Even a fool is counted wise when he holds his peace; when he shuts his lips, he is considered perceptive.
Proverbs 26:4-5
Do not answer a fool according to his folly, lest you also be like him. Answer a fool according to his folly, lest he be wise in his own eyes.
There are a ton of scriptures that tell us how to handle people and difficult situations. It is the very heart of a Christan in the world, and it can only be done by Christ living through us. How we react to others tells the world if Christ is truly in us or not.