private static void HandleFriendshipTrustRemoved(IUserDatabase userDatabase, IInternalLocalUser localUser, AbstractRemoveFriendshipTrustNotificationEventArgs e)
    {
        string friendUserId = e.Notification.FriendUserId;

        userDatabase.SetFriendIsTrusted(friendUserId, isTrusted: false);
        localUser.UntrustFriend(e.Notification.FriendUserId);
    }