diff --git a/src/main/java/appeng/block/AEBaseTileBlock.java b/src/main/java/appeng/block/AEBaseTileBlock.java
index fcf264b82de..f9f0ade9fa3 100644
--- a/src/main/java/appeng/block/AEBaseTileBlock.java
+++ b/src/main/java/appeng/block/AEBaseTileBlock.java
@@ -49,7 +49,9 @@
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.world.IBlockAccess;
 import net.minecraft.world.World;
+import net.minecraftforge.common.MinecraftForge;
 import net.minecraftforge.common.util.ForgeDirection;
+import net.minecraftforge.event.world.BlockEvent;
 
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
@@ -259,6 +261,13 @@ public boolean onBlockActivated( final World w, final int x, final int y, final
 							return false;
 						}
 
+						BlockEvent.BreakEvent event = new BlockEvent.BreakEvent( x, y, z, w, this, 0, player );
+						MinecraftForge.EVENT_BUS.post( event );
+						if( event.isCanceled() )
+						{
+							return false;
+						}
+
 						final ItemStack op = new ItemStack( this );
 						for( final ItemStack ol : drops )
 						{
diff --git a/src/main/java/appeng/parts/PartPlacement.java b/src/main/java/appeng/parts/PartPlacement.java
index 5802f76a839..ecc77ede505 100644
--- a/src/main/java/appeng/parts/PartPlacement.java
+++ b/src/main/java/appeng/parts/PartPlacement.java
@@ -50,6 +50,7 @@
 import net.minecraft.util.Vec3;
 import net.minecraft.world.World;
 import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.common.util.BlockSnapshot;
 import net.minecraftforge.common.util.ForgeDirection;
 import net.minecraftforge.event.entity.player.PlayerDestroyItemEvent;
 import net.minecraftforge.event.entity.player.PlayerInteractEvent;
@@ -104,8 +105,11 @@ public static boolean place( final ItemStack held, final int x, final int y, fin
 						final SelectedPart sp = selectPart( player, host, mop.hitVec.addVector( -mop.blockX, -mop.blockY, -mop.blockZ ) );
 
 						BlockEvent.BreakEvent event = new BlockEvent.BreakEvent( x, y, z, world, block, world.getBlockMetadata( x, y, z ), player );
-						MinecraftForge.EVENT_BUS.post(event);
-						if(event.isCanceled()) return true;
+						MinecraftForge.EVENT_BUS.post( event );
+						if( event.isCanceled() )
+						{
+							return false;
+						}
 
 						if( sp.part != null )
 						{
@@ -361,6 +365,12 @@ else if( host != null && !host.canAddPart( held, side ) )
 				return false;
 			}
 
+			BlockEvent.PlaceEvent event = new BlockEvent.PlaceEvent( BlockSnapshot.getBlockSnapshot( world, x, y, z ), world.getBlock( x, y, z ), player );
+			MinecraftForge.EVENT_BUS.post( event );
+			if( event.isCanceled() )
+			{
+				return false;
+			}
 			final ForgeDirection mySide = host.addPart( held, side, player );
 			if( mySide != null )
 			{