diff --git a/common/buildcraft/builders/BlockFiller.java b/common/buildcraft/builders/BlockFiller.java
index cd54396e..b743e96b 100644
--- a/common/buildcraft/builders/BlockFiller.java
+++ b/common/buildcraft/builders/BlockFiller.java
@@ -110,8 +110,9 @@ public class BlockFiller extends BlockContainer {
 	}
 	@Override
 	public void onBlockPlacedBy(World world, int i, int j, int k, EntityLivingBase entityliving, ItemStack stack){
-		if (world.getClosestPlayer(i, j, k, 5)!=null){
-			world.getClosestPlayer(i, j, k, 5).addStat(BuildCraftCore.fasterFillingAchievement, 1);
+		if (entityliving instanceof EntityPlayer){
+			EntityPlayer p=(EntityPlayer) entityliving;
+			p.addStat(BuildCraftCore.fasterFillingAchievement, 1);
 		}
 	}
 }
diff --git a/common/buildcraft/factory/BlockAutoWorkbench.java b/common/buildcraft/factory/BlockAutoWorkbench.java
index 2d6750a5..8e68cb88 100644
--- a/common/buildcraft/factory/BlockAutoWorkbench.java
+++ b/common/buildcraft/factory/BlockAutoWorkbench.java
@@ -80,8 +80,9 @@ public class BlockAutoWorkbench extends BlockBuildCraft {
 	}
 	@Override
 	public void onBlockPlacedBy(World world, int i, int j, int k, EntityLivingBase entityliving, ItemStack stack) {
-		if (world.getClosestPlayer(i, j, k, 5)!=null){
-			world.getClosestPlayer(i, j, k, 5).addStat(BuildCraftCore.aLotOfCraftingAchievement, 1);
+		if (entityliving instanceof EntityPlayer){
+			EntityPlayer p=(EntityPlayer) entityliving;
+			p.addStat(BuildCraftCore.aLotOfCraftingAchievement, 1);
 		}
 	}
 	
diff --git a/common/buildcraft/factory/BlockMiningWell.java b/common/buildcraft/factory/BlockMiningWell.java
index e448700d..0e7cd4a7 100644
--- a/common/buildcraft/factory/BlockMiningWell.java
+++ b/common/buildcraft/factory/BlockMiningWell.java
@@ -24,6 +24,7 @@ import net.minecraft.block.material.Material;
 import net.minecraft.client.renderer.texture.IIconRegister;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.EntityLivingBase;
+import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.item.ItemStack;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.IIcon;
@@ -64,8 +65,9 @@ public class BlockMiningWell extends BlockBuildCraft {
 	@Override
 	public void onBlockPlacedBy(World world, int i, int j, int k, EntityLivingBase entityliving, ItemStack stack) {
 		ForgeDirection orientation = Utils.get2dOrientation(entityliving);
-		if (world.getClosestPlayer(i, j, k, 5)!=null){
-			world.getClosestPlayer(i, j, k, 5).addStat(BuildCraftCore.straightDownAchievement, 1);
+		if (entityliving instanceof EntityPlayer){
+			EntityPlayer p=(EntityPlayer) entityliving;
+			p.addStat(BuildCraftCore.straightDownAchievement, 1);
 		}
 		world.setBlockMetadataWithNotify(i, j, k, orientation.getOpposite().ordinal(),1);
 	}
diff --git a/common/buildcraft/factory/BlockQuarry.java b/common/buildcraft/factory/BlockQuarry.java
index 25b439b2..0fb29731 100644
--- a/common/buildcraft/factory/BlockQuarry.java
+++ b/common/buildcraft/factory/BlockQuarry.java
@@ -52,8 +52,9 @@ public class BlockQuarry extends BlockBuildCraft {
 	@Override
 	public void onBlockPlacedBy(World world, int i, int j, int k, EntityLivingBase entityliving, ItemStack stack) {
 		super.onBlockPlacedBy(world, i, j, k, entityliving, stack);
-		if (world.getClosestPlayer(i, j, k, 5)!=null){
-			world.getClosestPlayer(i, j, k, 5).addStat(BuildCraftCore.chunkDestroyerAchievement, 1);
+		if (entityliving instanceof EntityPlayer){
+			EntityPlayer p=(EntityPlayer) entityliving;
+			p.addStat(BuildCraftCore.chunkDestroyerAchievement, 1);
 		}
 
 		ForgeDirection orientation = Utils.get2dOrientation(entityliving);
diff --git a/common/buildcraft/silicon/BlockLaserTable.java b/common/buildcraft/silicon/BlockLaserTable.java
index 2fb8d118..5f96f422 100644
--- a/common/buildcraft/silicon/BlockLaserTable.java
+++ b/common/buildcraft/silicon/BlockLaserTable.java
@@ -137,8 +137,9 @@ public class BlockLaserTable extends BlockContainer {
 	}
 	@Override
 	public void onBlockPlacedBy(World world, int i, int j, int k, EntityLivingBase entityliving, ItemStack stack){
-		if (world.getClosestPlayer(i, j, k, 5)!=null){
-			world.getClosestPlayer(i, j, k, 5).addStat(BuildCraftCore.timeForSomeLogicAchievement, 1);
+		if (entityliving instanceof EntityPlayer){
+			EntityPlayer p=(EntityPlayer) entityliving;
+			p.addStat(BuildCraftCore.timeForSomeLogicAchievement, 1);
 		}
 	}
 }