I know. Some time back, Inspector Javert and I talked about what it might take to try and... feed them the wrong sort of thing, I suppose. Poisoned light, if such a thing existed. It's a clever idea but I can't think of how to make it actually practical.

[He'll just leave the black hole thing alone, because what the fuck does all of that mean, dude.]

Really, this is our chance to learn more about them, if it's what the message said it is. If it's smaller, or weaker, or trapped, at least it gives us some kind of leg up. But if we can reliably cage it, like you say... we could probably learn a lot about them.