[ Makes sense. Their dressers are too close for him to go through whichever she doesn't without risking upset, so he moves for the closet. As he passes he spots a booklet, tapping its title — Survival Under Atomic Attack — before continuing along his path. He'll let her take first whack at it. He's losing hope any one item will reveal anything overtly useful, but it piques his interest. ]

Go nuts. I mean it, if it's safe you can take your pick. How do you want to test it? Best I'm coming up with off the top of my head is maybe we try eggs, both eat at the same time. Bananas aren't bad either, anything sealed with something we could check for breaks. Needle marks. Whatever.