Vandalism is any addition, removal, or change of content in a deliberate attempt to compromise the integrity of a Wiki. Users in our community should recognize such acts for what they are, undo the damage and/or contact an site administrator. It is advised, and greatly preferred, that these situation be dealt with in a formal, time-effective manner, so to not encourage the vandal to ruin more pages. Try not to socialize with the culprit or feed into their antics—"act" not "react".