Any amount of showing how to bludgeon someone with a flashlight/torch is all good here. If anything these two should talk just because they kinda know what a post apocalypse is...well except Glitch hasn't had to deal with the undead.

As For Sakura uh yes. Yes they need to emotionally support one another. Maybe with a big blanket and hot chocolate as they watch movies or something. Make a pillow fort. He's gonna wanna comfort his little sis after hearing all that.