[@Cyrania] If you didn't look into it, Psykers in Warhammer 40K are hunted unless they fight for the Emperor, at which time they are soulbound to him, increasing their willpower, their abilities, and making them loyal. I'm still a Knight. I know the power of mages and how dangerous they are. I wouldn't force you to do it but I certainly wouldn't trust you until you put the collar back on. Fredric had five of his battle brothers cut down by a bunch of mages, he still wears their sigils around his neck like dog tags to remind him of that. My companion Nala even still wears her collar.