It seems to me that Jesus has told us exactly how to deal with a person's 
questionable behavior or doctrine:  I believe it is so important to pray 
about it first, for the Lord to guide me as to what I should say or do. 
Then, if I still see something questionable, I need to go to that person 
privately, just the two of us, and tell him/her honestly but calmly what I'm 
seeing, ask if this is true.  If so, I need to share the scriptures that I 
see contradicting this activity.  If the person refuses to back down and 
examine what I have to say, then I need to bring in at least another person 
whom the Lord knows is firmly grounded in the faith, as a witness. 
(Actually I don't remember how many people, but it would be a very small 
group.)  If the wayward person still refuses to repent, then, and only then, 
we would need to tell the church.  And I agree with what Kathy says, you 
criticize, you fix.  I pray that God will lead us to do this more often, and 
I hope the same is being done with even the big church leaders.

Sharon