For Iaccidentally.

src/main/java/com/gmail/nossr50/config/Config.java

@@ -46,6 +46,9 @@ public class Config extends AutoUpdateConfigLoader {
     public boolean getVerboseLoggingEnabled() { return config.getBoolean("General.Verbose_Logging", false); }
     public boolean getConfigOverwriteEnabled() { return config.getBoolean("General.Config_Update_Overwrite", true); }
 
+    public boolean getPotatoEnabled() { return config.getBoolean("General.Config.Potato_Explosion_Enabled", true); }
+    public int getPotatoChance() { return config.getInt("General.Config.Potato_Explosion_Chance", 1); }
+
     public boolean getPartyDisplayNames() { return config.getBoolean("Commands.p.Use_Display_Names", true); }
     public boolean getAdminDisplayNames() { return config.getBoolean("Commands.a.Use_Display_Names", true); }
 

src/main/java/com/gmail/nossr50/listeners/InventoryListener.java

@@ -1,5 +1,6 @@
 package com.gmail.nossr50.listeners;
 
+import org.bukkit.Material;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockState;
 import org.bukkit.block.Furnace;
@@ -21,6 +22,7 @@ import org.bukkit.inventory.ItemStack;
 import org.bukkit.metadata.FixedMetadataValue;
 
 import com.gmail.nossr50.mcMMO;
+import com.gmail.nossr50.config.Config;
 import com.gmail.nossr50.datatypes.skills.SkillType;
 import com.gmail.nossr50.skills.smelting.SmeltingManager;
 import com.gmail.nossr50.util.ItemUtils;
@@ -118,6 +120,14 @@ public class InventoryListener implements Listener {
         if (furnaceState instanceof Furnace) {
             ItemStack smelting = ((Furnace) furnaceState).getInventory().getSmelting();
 
+            if (Config.getInstance().getPotatoEnabled() && smelting.getType() == Material.POTATO_ITEM) {
+                if ((Config.getInstance().getPotatoChance() / 100.0) >= Misc.getRandom().nextDouble()) {
+                    event.setCancelled(true);
+                    furnaceState.getWorld().createExplosion(furnaceState.getLocation(), 4F, true);
+                    return;
+                }
+            }
+
             if (furnaceBlock.hasMetadata(mcMMO.furnaceMetadataKey) && smelting != null && ItemUtils.isSmeltable(smelting)) {
                 // We can make this assumption because we (should) be the only ones using this exact metadata
                 Player player = plugin.getServer().getPlayer(furnaceBlock.getMetadata(mcMMO.furnaceMetadataKey).get(0).asString());

src/main/resources/config.yml

@@ -26,6 +26,9 @@ General:
     Verbose_Logging: false
     # Should mcMMO over-write configs to update, or make new ones ending in .new?
     Config_Update_Overwrite: true
+    # Enable potato easter egg?
+    Potato_Explosion_Enabled: true
+    Potato_Explosion_Chance: 1
 
 Scoreboards:
     Inspect: