diff --git a/modules/opd_podcast/src/Guests.php b/modules/opd_podcast/src/Guests.php
index df48a3401..f0594c290 100644
--- a/modules/opd_podcast/src/Guests.php
+++ b/modules/opd_podcast/src/Guests.php
@@ -4,12 +4,10 @@ declare(strict_types=1);
 
 namespace Drupal\opd_podcast;
 
-use Drupal\taxonomy\TermInterface;
-
 /**
  * @implements \IteratorAggregate<Guest>
  */
-final class Guests implements \ArrayAccess, \Countable, \IteratorAggregate, \Stringable {
+final class Guests implements \Countable, \IteratorAggregate, \Stringable {
 
  /**
   * @param Guest[] $guests
@@ -25,31 +23,15 @@ final class Guests implements \ArrayAccess, \Countable, \IteratorAggregate, \Str
     return new \ArrayIterator($this->guests);
   }
 
-  public function offsetExists(mixed $offset): bool {
-    return isset($this->guests[$offset]);
-  }
-
-  public function offsetGet(mixed $offset): mixed {
-    return $this->guests[$offset];
-  }
-
-  public function offsetSet(mixed $offset, mixed $value): void {
-    $this->guests[$offset] = $value;
-  }
-
-  public function offsetUnset(mixed $offset): void {
-    unset($this->guests[$offset]);
-  }
-
   public function __toString(): string {
     // TODO: allow for more than two guests.
-    if (count($this->guests) === 2) {
-      assert($this->guests[1] instanceof Guest);
+    if ($this->count() === 2) {
+      assert($this->get(0) instanceof Guest);
 
-      return sprintf('%s %s %s', $this->guests[0]->getName(), t('and'), $this->guests[1]->getName());
+      return sprintf('%s %s %s', $this->get(0)->getName(), t('and'), $this->get(1)->getName());
     }
 
-    return strval($this->guests[0]->getName());
+    return strval($this->get(0)->getName());
   }
 
   /**
@@ -59,4 +41,8 @@ final class Guests implements \ArrayAccess, \Countable, \IteratorAggregate, \Str
     return new self($guests);
   }
 
+  private function get(int $offset): ?Guest {
+    return $this->guests[$offset];
+  }
+
 }