In my own experience try to fade. However there may come a time where we have to make a stand for truth. Don't go looking for a fight so to speak, but don't back down if the need arises. Many times Christ did just that, The Pharisees came looking to start something and Jesus masterfully showed the hypocrisy, at times using strong blunt statements to get the point across usually as a last resort. If we do this like Jesus and use a kind mild spirit at the right time. we may win a brother or sister.