Nobody makes puzzles as good as you do. [And Sans means that. He's sure, now, that he can remember spending a fair amount of time just watching people try to get through whatever weird puzzle Papyrus had set up, which was probably not helping anyone with productivity, but was very funny.

He's gotten a little off topic. Not exactly, but he did have a point, he guesses, with where he was going with things. Reluctantly, he refocuses himself.]

In the cave, when I remembered him, it was--how he died. [Sans balks at the idea of listing off the details unprompted, and instead reaches for some words Papyrus used earlier in the conversation.] Working with reality-changing things.

[He doesn't have a good track record with that stuff.]