Some early Christians thought it was a good idea to carve a cross on the forehead of this Roman statue, in order to “Christinify” him.
When the Muslims took over the Aya Sofya, they thought it was a good idea to remove the top part of all the Christian crosses, in order to “Islamify” the church.
And in 2006 this person thought it was a good idea to sign their name and date on top of a 13th C. fresco, in order to let everyone know that he visited this unprotected, early Christian cave.
Note: All of these examples were found in Turkey in 2008.