Tarzan, rightly suspecting Hawkins' untrustworthiness, exposes his treachery. Laziness, incompetence, weakness of will, sloppiness, and untrustworthiness to name a few of them. Jesch translates "Blakumen" as Vlachs, confronting their treachery with their untrustworthiness as claimed by Kekaumenos. Weeping at Abbas's cruelty and untrustworthiness, Ibn Tulun ordered him flogged and imprisoned. In 1976 his teaching license was revoked because of his "political untrustworthiness". Toni suspects Julian's untrustworthiness and leaves him for Igor. Self-signed certificates are also often called snake oil certificates to emphasize their untrustworthiness.