Prong (or pinch) collars like the one in this photo are common tools used in obedience training for dogs. Although banned in some countries, they are quite popular in the United States. Some dog trainers believe that prong collars are safer than choke collars, which tighten around the dogs' neck when pulled. The spikes on prong collars are not sharp but can be very uncomfortable for the dogs if they are pulled.This contraption reminds me of a cilice, a metal chain with spikes that is supposedly used by Opus Dei members who practice corporal mortification. If you watched the movie, The Da Vinci Code, you might remember one of the characters wearing the cilice under his robe.
What is your opinion on the use of prong collars in obedience training for dogs?
