Are you trying to talk yourself into something? Because I don't recommend it. I really don't. For starters, I don't have a cage, when I'm awake. And I'll bet yours is easy to find. Admitting that there's a time or place where Yuri is made vulnerable is a mistake; if Zagreus takes any actual injuries out of the dreaming, he's bound to want retaliation. It's not that it's Yuri's fault that the whole jabberwock thing happened, but the two are now linked by association, inextricably.