But this one isn't like the "How many r's in strawberry" one: The failure mode, where it misses a key requirement for success, is exactly the kind of failure mode that could make it spend millions of tokens building something which is completely useless.

That said, I saw the title before I realized this was an LLM thing, and was confused: assuming it was a genuine question, then the question becomes, "Should I get it washed there or wash it at home", and then the "wash it at home" option implies picking up supplies; but that doesn't quite work.

But as others have said -- this sort of confusion is pretty obvious, but a huge amount of our communication has these sorts of confusions in them; and identifying them is one of the key activities of knowledge work.