And you believe God gave parchment with secret messages to Mary to give to one of the kids at Medjugorje?
In the Book of Numbers, the pagan prophet Balaam beats his donkey for repeatedly refusing to move past an invisible Angel blocking his path. The donkey tried to avoid the Angel and pressed close to a wall, crushing Balaam’s foot against it. God later miraculously opens the donkey’s mouth to speak and ask why she (the donkey) is being beaten by Balaam. Then Balaam’s eyes are opened and he could see the Angel that the donkey could see and he sees that the Angel’s sword was drawn. So, the talking donkey saved his life from being killed by an Angel of the Lord, because the man was going to sell Israel out to King Balak.
So, magic parchment is not as far-fetched as a talking donkey I guess. But, still, I do not think that God is like a school girl passing secret notes to her friend on the other side of the class room, though I bet the school girl would love to have a not that only revealed the message to the intended individual and if anyone else were to intercept it, they would either see a different message or a blank piece of paper. This might be a good plot idea for a movie or novel.