perhaps the cure was worse...Thoreau's Journal: 31-Jul-1855

Mr. Samuel Hoar tells me that about forty-eight years ago, or some two or three years after he came to Concord, where he had an office in the yellow store, there used to be a great many bull-frogs in the mill-pond, which, by their trumping in the night, disturbed the apprentices of a Mr. Joshua Jones who built and lived in the brick house near by and soon after set up the trip-hammer. But, as Mr. H was going one day to or from his office (he boarded this side the Mill-Dam), he found that the apprentices had been round the pond in a boat knocking the frogs in the head; got a good-sized tub nearly full of them. After that scarcely any were heard, and, the trip-hammer being set up soon after, they all disappeared as if frightened away by the sound. But perhaps the cure was worse than the disease, for I know of one, then a young minister studying divinity, who boarded in that very brick house, who was so much disturbed by that trip-hammer that, out of compassion, he was taken in at the old parsonage.