I am reluctant to write about any other moissod’s way of disciplining, but I think that one has to realise that every case is different. If a child does not accept authority on a regular basis, then it is necassary to have a punishment that all the children will remember for a long time, in order to keep discipline.
Although i have never used this particular punishment i think that some more extreme measures are necassary to ensure that the clas/camp run smoothly, and authority is accepted.