It strikes him that he doesn't particularly want Dean to hide. That's something he'll have to examine later on. More at the front of his mind is what kind of mortal finds the apocalypse boring?

That's just. No.

Its not that he's insulted, it's just... who finds terror and death boring? He's about to bombard Dean with questions until the mattresses thing comes back to bit him in the arse. How did Dean know? The likelihood that the human is psychic seems more realistic to a creature like Zack, than the fact that he's probably betraying himself with every expression. “I s'pose comfy is good. Whatever a bed is.”

As he passes through the open door, Zack braces himself for the warning Dean says is coming. But it's nothing dangerous sounding, although having his food allowance reduced is not something he likes the sound of. It's often the way Abe controls him when he's being... whatever he's being.

Zack's shoulders droop. “That's exactly what Abe does. Thought it'd be different in a place of abundance.” But he does take in the rules. Don't mess with the serving-mortals. Spit-food doesn't sound pleasant.

“I don't know how to behave in this place,” he hisses under his breath, once they’re in. “What do I do?”