When people do not know the whole story, they fill in the gaps with negative assumptions.
People always assume the worst and not the best in others.
One challenge for Christians is to quiet the negative voices in their heads and look for the best in others. We are to offer encouragement over criticism. We assume the best and fill in the gaps in our knowledge with positive thoughts.
Sometimes, living for Jesus means rewiring our brains so that the stories we tell ourselves are filled with light and not darkness.