When Laura runs away after being ridiculed by Nellie and Willie, Miss Beadle comes outside and is genuinely baffled as to what happened. Nellie and Willie lie right to their teacher's face about it and saunter back into their house, but you would think Miss Beadle would be smart enough to put two and two together. Hasn't she seen Nellie and Willie torment Laura on more than one occasion? It doesn't take a genius to at least consider that the two of them may have had something to do with this, but instead, Miss Beadle just blames herself. Of course, this may just be nitpicking.