A research by the Harvard Medical School , internal and external stress can all contribute to a person relapsing into addictive behavior. When you get addicted, your amygdale (which is associated with emotions), your hippocampus (which is associated with memory), the nucleus accumbens (which is associated with high dopamine levels), and the corticotrophin hormone (which is released during stress) are all working together. As a result, your mood, the people around you, and your experiences can all trigger this network and cause the addictive behavior. This is the reason why an addict relapses after smelling a cigarette, experiencing a stressful situation, or after seeing a sexual video image.
In Malaysia, it has been revealed that the juvenile "light rattan" is also used for non-violent "white-collar" offenders, those convicted of criminal breach of trust -- embezzlement and the like (Criminal Procedure Code (Amendment) Act 1994). It has been described as "about half the size of the standard rotan". This seems to be an exaggeration. The following picture, from a display at Johor Baru prison, shows one longer and two shorter canes, and the shorter ones are only a few inches shorter than the longer one, but also somewhat thinner.