Detta är " Regn, regn, gå bort " av Issac Asimov, 1959
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“Her kitchen,” said Lillian, ignoring him, “was so spanking clean you just couldn’t believe she ever used it. I asked for a drink of water and she held the glass underneath the tap and poured slowly so that not one drop fell in the sink itself. It wasn’t affectation. She did it so casually that I just knew she always did it that way. And when she gave me the glass she held it with a clean napkin. Just hospital-sanitary.”
senare
Their faces blurred as the rain hit; blurred and shrank and ran together. All three shriveled, collapsing within their clothes, which sank down into three sticky-wet heaps. And while the Wright’s sat there, transfixed with horror, Lillian found herself unable to stop the completion of her remark: “—made of sugar and afraid they would melt.”