diff --git a/src/main/java/net/minestom/server/entity/metadata/AgeableMobMeta.java b/src/main/java/net/minestom/server/entity/metadata/AgeableMobMeta.java
index 1467bff49..a9c875a7e 100644
--- a/src/main/java/net/minestom/server/entity/metadata/AgeableMobMeta.java
+++ b/src/main/java/net/minestom/server/entity/metadata/AgeableMobMeta.java
@@ -21,12 +21,16 @@ public class AgeableMobMeta extends PathfinderMobMeta {
         if (isBaby() == value) {
             return;
         }
-        BoundingBox bb = this.entity.getBoundingBox();
-        if (value) {
-            setBoundingBox(bb.getWidth() / 2, bb.getHeight() / 2);
-        } else {
-            setBoundingBox(bb.getWidth() * 2, bb.getHeight() * 2);
-        }
+        this.consumeEntity((entity) -> {
+            BoundingBox bb = entity.getBoundingBox();
+            if (value) {
+                double width = bb.getWidth() / 2;
+                entity.setBoundingBox(width, bb.getHeight() / 2, width);
+            } else {
+                double width = bb.getWidth() * 2;
+                entity.setBoundingBox(width, bb.getHeight() * 2, width);
+            }
+        });
         super.metadata.setIndex(OFFSET, Metadata.Boolean(value));
     }
 
diff --git a/src/main/java/net/minestom/server/entity/metadata/EntityMeta.java b/src/main/java/net/minestom/server/entity/metadata/EntityMeta.java
index a34add2c6..2746fd7c3 100644
--- a/src/main/java/net/minestom/server/entity/metadata/EntityMeta.java
+++ b/src/main/java/net/minestom/server/entity/metadata/EntityMeta.java
@@ -4,6 +4,10 @@ import net.kyori.adventure.text.Component;
 import net.minestom.server.entity.Entity;
 import net.minestom.server.entity.Metadata;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.lang.ref.WeakReference;
+import java.util.function.Consumer;
 
 public class EntityMeta {
     public static final byte OFFSET = 0;
@@ -17,11 +21,11 @@ public class EntityMeta {
     private final static byte HAS_GLOWING_EFFECT_BIT = 0x40;
     private final static byte FLYING_WITH_ELYTRA_BIT = (byte) 0x80;
 
-    protected final Entity entity;
+    private final WeakReference<Entity> entityRef;
     protected final Metadata metadata;
 
-    public EntityMeta(@NotNull Entity entity, @NotNull Metadata metadata) {
-        this.entity = entity;
+    public EntityMeta(@Nullable Entity entity, @NotNull Metadata metadata) {
+        this.entityRef = new WeakReference<>(entity);
         this.metadata = metadata;
     }
 
@@ -180,12 +184,11 @@ public class EntityMeta {
         setMask(index, mask);
     }
 
-    protected void setBoundingBox(double x, double y, double z) {
-        this.entity.setBoundingBox(x, y, z);
-    }
-
-    protected void setBoundingBox(double width, double height) {
-        setBoundingBox(width, height, width);
+    protected void consumeEntity(Consumer<Entity> consumer) {
+        Entity entity = this.entityRef.get();
+        if (entity != null) {
+            consumer.accept(entity);
+        }
     }
 
 }
diff --git a/src/main/java/net/minestom/server/entity/metadata/monster/PiglinMeta.java b/src/main/java/net/minestom/server/entity/metadata/monster/PiglinMeta.java
index ae5b318ac..65e25d905 100644
--- a/src/main/java/net/minestom/server/entity/metadata/monster/PiglinMeta.java
+++ b/src/main/java/net/minestom/server/entity/metadata/monster/PiglinMeta.java
@@ -21,12 +21,16 @@ public class PiglinMeta extends BasePiglinMeta {
         if (isBaby() == value) {
             return;
         }
-        BoundingBox bb = this.entity.getBoundingBox();
-        if (value) {
-            setBoundingBox(bb.getWidth() / 2, bb.getHeight() / 2);
-        } else {
-            setBoundingBox(bb.getWidth() * 2, bb.getHeight() * 2);
-        }
+        this.consumeEntity((entity) -> {
+            BoundingBox bb = entity.getBoundingBox();
+            if (value) {
+                double width = bb.getWidth() / 2;
+                entity.setBoundingBox(width, bb.getHeight() / 2, width);
+            } else {
+                double width = bb.getWidth() * 2;
+                entity.setBoundingBox(width, bb.getHeight() * 2, width);
+            }
+        });
         super.metadata.setIndex(OFFSET, Metadata.Boolean(value));
     }
 
diff --git a/src/main/java/net/minestom/server/entity/metadata/monster/ZoglinMeta.java b/src/main/java/net/minestom/server/entity/metadata/monster/ZoglinMeta.java
index 9aa81aa0a..561d2b37a 100644
--- a/src/main/java/net/minestom/server/entity/metadata/monster/ZoglinMeta.java
+++ b/src/main/java/net/minestom/server/entity/metadata/monster/ZoglinMeta.java
@@ -21,12 +21,16 @@ public class ZoglinMeta extends MonsterMeta {
         if (isBaby() == value) {
             return;
         }
-        BoundingBox bb = this.entity.getBoundingBox();
-        if (value) {
-            setBoundingBox(bb.getWidth() / 2, bb.getHeight() / 2);
-        } else {
-            setBoundingBox(bb.getWidth() * 2, bb.getHeight() * 2);
-        }
+        this.consumeEntity((entity) -> {
+            BoundingBox bb = entity.getBoundingBox();
+            if (value) {
+                double width = bb.getWidth() / 2;
+                entity.setBoundingBox(width, bb.getHeight() / 2, width);
+            } else {
+                double width = bb.getWidth() * 2;
+                entity.setBoundingBox(width, bb.getHeight() * 2, width);
+            }
+        });
         super.metadata.setIndex(OFFSET, Metadata.Boolean(value));
     }
 
diff --git a/src/main/java/net/minestom/server/entity/metadata/monster/zombie/ZombieMeta.java b/src/main/java/net/minestom/server/entity/metadata/monster/zombie/ZombieMeta.java
index d074c6d4e..5a20f3555 100644
--- a/src/main/java/net/minestom/server/entity/metadata/monster/zombie/ZombieMeta.java
+++ b/src/main/java/net/minestom/server/entity/metadata/monster/zombie/ZombieMeta.java
@@ -22,12 +22,16 @@ public class ZombieMeta extends MonsterMeta {
         if (isBaby() == value) {
             return;
         }
-        BoundingBox bb = this.entity.getBoundingBox();
-        if (value) {
-            setBoundingBox(bb.getWidth() / 2, bb.getHeight() / 2);
-        } else {
-            setBoundingBox(bb.getWidth() * 2, bb.getHeight() * 2);
-        }
+        this.consumeEntity((entity) -> {
+            BoundingBox bb = entity.getBoundingBox();
+            if (value) {
+                double width = bb.getWidth() / 2;
+                entity.setBoundingBox(width, bb.getHeight() / 2, width);
+            } else {
+                double width = bb.getWidth() * 2;
+                entity.setBoundingBox(width, bb.getHeight() * 2, width);
+            }
+        });
         super.metadata.setIndex(OFFSET, Metadata.Boolean(value));
     }
 
diff --git a/src/main/java/net/minestom/server/entity/metadata/other/SlimeMeta.java b/src/main/java/net/minestom/server/entity/metadata/other/SlimeMeta.java
index 2217ca64e..aefe938a3 100644
--- a/src/main/java/net/minestom/server/entity/metadata/other/SlimeMeta.java
+++ b/src/main/java/net/minestom/server/entity/metadata/other/SlimeMeta.java
@@ -1,5 +1,6 @@
 package net.minestom.server.entity.metadata.other;
 
+import net.minestom.server.collision.BoundingBox;
 import net.minestom.server.entity.Entity;
 import net.minestom.server.entity.Metadata;
 import net.minestom.server.entity.metadata.MobMeta;
@@ -18,8 +19,10 @@ public class SlimeMeta extends MobMeta {
     }
 
     public void setSize(int value) {
-        float boxSize = 0.51000005f * value;
-        setBoundingBox(boxSize, boxSize);
+        this.consumeEntity((entity) -> {
+            float boxSize = 0.51000005f * value;
+            entity.setBoundingBox(boxSize, boxSize, boxSize);
+        });
         super.metadata.setIndex(OFFSET, Metadata.VarInt(value));
     }
 
diff --git a/src/main/java/net/minestom/server/entity/metadata/water/fish/PufferfishMeta.java b/src/main/java/net/minestom/server/entity/metadata/water/fish/PufferfishMeta.java
index 2920830b6..8f0e3b584 100644
--- a/src/main/java/net/minestom/server/entity/metadata/water/fish/PufferfishMeta.java
+++ b/src/main/java/net/minestom/server/entity/metadata/water/fish/PufferfishMeta.java
@@ -1,5 +1,6 @@
 package net.minestom.server.entity.metadata.water.fish;
 
+import net.minestom.server.collision.BoundingBox;
 import net.minestom.server.entity.Entity;
 import net.minestom.server.entity.Metadata;
 import org.jetbrains.annotations.NotNull;
@@ -23,11 +24,13 @@ public class PufferfishMeta extends AbstractFishMeta {
     }
 
     private void updateBoundingBox(State state) {
-        switch (state) {
-            case UNPUFFED -> setBoundingBox(.35D, .35D);
-            case SEMI_PUFFED -> setBoundingBox(.5D, .5D);
-            default -> setBoundingBox(.7D, .7D);
-        }
+        this.consumeEntity((entity) -> {
+            switch (state) {
+                case UNPUFFED -> entity.setBoundingBox(.35D, .35D, .35D);
+                case SEMI_PUFFED -> entity.setBoundingBox(.5D, .5D, .5D);
+                default -> entity.setBoundingBox(.7D, .7D, .7D);
+            }
+        });
     }
 
     public enum State {