"Blue is one of our castes. They do rulership, judiciary, and land ownership."

"'Caste' isn't translating."

"It seems like you divide your society by - sex or something like it? We have caste instead. Everyone can have children, and people's children are the same caste as their parents."

"..."

"Does some of that need rephrasing?"

"...It's a bit much to wrap one's head around."

"Have you ever thought about meeting other species of people before? We have a whole genre of fiction about it."

"Not really. That sounds fascinating, though."

"We're actually surprised you're so similar. You look a lot like us."

"It's strange," they agree.

"When actors portray aliens they often dye their hair brown or black to cheaply indicate that, but some of you aren't even as different as that."

The worker makes a face. "I've been made aware."

"It was probably smart not to bring anyone with red hair this time - we know you're aliens, now, but you appeared in the middle of the street and we haven't told the public."

"It would have ended less well for any attackers, this time," the one with the sword notes darkly.

"They're already going to have a hard time containing the story about a bunch of people appearing in the road, it's a good thing there's not also a death to explain. If somebody landed in your world and looked like a - giant predatory monster or something - they might not do so well even if they didn't eat anyone, right?"

"If someone showed up looking like a giant predatory monster people would back away slowly, not attack them."

"I'm not very good at analogies. It might be that your species has less of a natural aggressive response than we do. Do you only eat plants?"

"...You eat people with red hair?!"

"No! Absolutely not, never, no. I'm just wondering if you're an herbivorous species, because those are less likely to consider attacking suddenly appearing startling things and more likely to hold still or run away. We do eat animals."

"You might attack a suddenly appearing startling thing if you had a sword, but most people don't. Hitting an apex predator with a broom would be dumb."

"Reds aren't apex predators. It's not a perfect analogy."

"Yes, it's much more reasonable to attack an apex predator than a plumber."

"People are very frightened of reds. We feel awful if we have to be around them, which is why they live separately."

"That really doesn't excuse torture."

"That's never been commonplace. How much of our conversation did the guards I spoke to relay home?"