diff --git a/src/app/AuthAttempt.php b/src/app/AuthAttempt.php
--- a/src/app/AuthAttempt.php
+++ b/src/app/AuthAttempt.php
@@ -4,6 +4,7 @@
 
 use Illuminate\Database\Eloquent\Model;
 use Iatstuti\Database\Support\NullableFields;
+use App\Traits\UuidTrait;
 use Carbon\Carbon;
 
 /**
@@ -14,6 +15,7 @@
 class AuthAttempt extends Model
 {
     use NullableFields;
+    use UuidTrait;
 
     // No specific reason
     public const REASON_NONE = '';
@@ -43,9 +45,6 @@
         'last_seen' => 'datetime'
     ];
 
-    public $incrementing = false;
-    protected $keyType = 'string';
-
     /**
     * Prepare a date for array / JSON serialization.
     *
diff --git a/src/app/Observers/AuthAttemptObserver.php b/src/app/Observers/AuthAttemptObserver.php
deleted file mode 100644
--- a/src/app/Observers/AuthAttemptObserver.php
+++ /dev/null
@@ -1,31 +0,0 @@
-<?php
-
-namespace App\Observers;
-
-use App\AuthAttempt;
-
-/**
- * This is an observer for the AuthAttempt model definition.
- */
-class AuthAttemptObserver
-{
-    /**
-     * Handle the "creating" event on an AuthAttempt.
-     *
-     * Ensures that the entry uses a custom ID (uuid).
-     *
-     * @param AuthAttempt $authAttempt The AuthAttempt being created.
-     *
-     * @return void
-     */
-    public function creating(AuthAttempt $authAttempt)
-    {
-        while (true) {
-            $allegedly_unique = \App\Utils::uuidStr();
-            if (!AuthAttempt::find($allegedly_unique)) {
-                $authAttempt->{$authAttempt->getKeyName()} = $allegedly_unique;
-                break;
-            }
-        }
-    }
-}
diff --git a/src/app/Traits/UuidTrait.php b/src/app/Traits/UuidTrait.php
new file mode 100644
--- /dev/null
+++ b/src/app/Traits/UuidTrait.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace App\Traits;
+
+trait UuidTrait
+{
+    /**
+     * Boot function from Laravel.
+     */
+    protected static function boot()
+    {
+        parent::boot();
+        static::creating(function ($model) {
+            if (empty($model->{$model->getKeyName()})) {
+                while (true) {
+                    $allegedly_unique = \App\Utils::uuidStr();
+                    if (!$model->find($allegedly_unique)) {
+                        $model->{$plan->getKeyName()} = $allegedly_unique;
+                        break;
+                    }
+                }
+            }
+        });
+    }
+
+    /**
+     * Get if the key is incrementing.
+     *
+     * @return bool
+     */
+    public function getIncrementing()
+    {
+        return false;
+    }
+
+    /**
+     * Get the key type.
+     *
+     * @return string
+     */
+    public function getKeyType()
+    {
+        return 'string';
+    }
+}