leaving quietly-- thanks for the link.
I especially like this one:
29. "Do not Oppose Other Christian Groups"
"Teacher," said John, "we saw a man driving out demons in your name and we told him to stop, because he was not one of us."
"Do not stop him," Jesus said. "No one who does a miracle in my name can in the next moment say anything bad about me, for whoever is not against us is for us." (Mark 9:38-40 NIV)