Despite the commonly held belief that BDSM is essentially all about punishment, pain, whips, chains, and anything that might cause severe agony, the exact opposite is more commonplace. If you dissect the definitions of Bondage, Discipline, Sado, and Masochism, three of those words can be related to pain play, and even bondage can be used in a painful way, depending on how it is applied. If you search for BDSM, many images are submissives with strained faces being subjected to painful experiences. It can be hard to see past that first glimpse for many.
While much attention is focused on discipline and pain for dramatic effect, when it comes to actual submissive training, rewards and positive reinforcement tend to be more effective in submissive training.
As the old saying goes, “You catch more flies with honey than you do with vinegar.”