A certain huckster finding that salt was cheap at the sea-side loaded his beast with all it could bear. In passing a slippery ledge it fell into the stream below melting all the salt. The huckster then set off for some more. This time the beast fell down purposely expecting by dissolving the salt to be free to return home unburdened. Annoyed by his loss the man then loaded the beast with sponges and when it tried its old trick again the water-soaked sponges added twice the weight to the load and it learned to its regret that it had played the trick once too often.