However, at some point, the transfer on this holiday was forbidden. There is another version connected with the story of Odessa thief Rakachinsky nicknamed Rak. According to legend, when the rain began, wagons with goods were led through bypass roads. In these cases, Rak had to whistle, notifying that the movement had began. But, the rains were rare, so the expression “When crayfish on the mountain whistles” meant something never likely to happen.