[The surprise at Papyrus having some memory of this shows on Sans's face just a bit. Had the whole amnesia situation knocked things loose for both of them, or did Papyrus always have some memory of it? Sans had always had trouble separating memory from assumptions and deductions based on the things he had and knew, but Papyrus would have been...]

Well, you were like--twelve, when, uh--when he died. [Is died even the right way to describe what happened?] Anyway, you were always more into building puzzles and stuff. You turned the break room into one once, I think...?

[Okay, probably more than once. But again, is that just Sans extrapolating on what he knows Papyrus is like, or is he really remembering it?]