If nobody believed in superstition it would be unable to hurt anyone
Silence - except in the presence of the experts
If I experience a miracle, I have no right to ask or tell anybody else to believe in it. I have no right to even mention it - I would not be mentioning it unless I was encouraging the other person to believe! If I see a man commit a murder, its not others I should be telling but the appropriate authorities for only they are qualified to check me out. Miracles encourage disrespect for nobody does that.