added 30 second delay to Enrollment Officer

src/engine/objects/PlayerCharacter.java

@@ -177,6 +177,8 @@ public class PlayerCharacter extends AbstractCharacter {
 
     public float ZergMultiplier = 1.0f;
     public int mineAppliedID = 0;
+
+    public long lastBoxChange = System.currentTimeMillis();
     /**
      * No Id Constructor
      */