And Randel'll hold up a hand to let him know he doesn't have to: for his own sake, not Randel's. Randel's not worried about his own sake, just Dennis's. He'll ask if he needs anything else, if he can help in any other way. He'll guess there's a reason he's in the woods and, in an echo of something from his own world, ask if there are others out there and if he'll need other supplies later.