[Why anyone would bother doing anything with heating pipes is beyond Kylo. Which is fine, as he's not particularly interested in following the diversion anyway.]

Any threat. You've seen it. They fixate on an irrelevant detail and miss the wider movement. And even when warned of a real and present danger. Even when their failure to engage with it has visible consequences. Instead of learning from the experience, they forget. They ignore or reject anything that doesn't provide evidence to support their own beliefs. Their own priorities.

But you're talking to me. So. We both know which threat I mean.