Hey, believe me man, I try to get him to talk about stuff with me, but I'm from a while behind him in the timeline. He's... changed a lot in between when I left and where he's from. I won't bore you with the whole story unless you want me to, but seriously, I'd give anything for things to go back to normal.

Claire was looking for people to help out in the gym a while ago, I think Harper's one of the ones in charge of the engine room? In the gym, you'd be making sure the equipment's working and keeping an eye on people working out. I assume the engine room is more making sure everything's running smoothly, but I don't really spend a lot of time down there, so I wouldn't know exactly how things would work.