Good advice in our Proverbs on how to avoid fights:

Pro 16:7  When people’s lives please the LORD, even their enemies are at peace with them.

IF we live a life that brings honor to God, God will issue His blessings upon us.  If we think about when we have been warring with someone else in our lives, it always goes back to sin.  Drinking a lot, leads to drunken brawls.  Stealing and lying always catches up to us.  All of these things are displeasing to God and will give us no shortage of enemies. 

Meanwhile, when we live a life that pleases God, thereby removing sin in our lives and living in obedience to God’s commands, our quarrels with others will also stop.