Well, as much as I hate to say it, there are those people... [what sherlock is explaining, though, that's definitely an unlucky accident. sizhui's brow knits, he hums, pauses halfway through filling a vegetable bun then decides to chance asking,] What with? Did they ever figure out how it happened?

[as for this new suggestion of poisoning method, he's immediately reminded of something:]

I believe I read a book with a premise like that? A husband was poisoning his wife over time with arsenic for foul, unspeakable reasons, of course. He was caught, fortunately, but the woman still suffered from problems years later.

[throughout this lovely(?) discussion, sizhui has managed to put together a decent amount of bao already, which he briefly breaks away from to collect some plastic wrap, that way these can be covered and not contaminated while he works on putting more together. he does veer off toward his coffee cup for a moment, gulping down as much of the sweetened beverage as he can before setting the cup aside again.]