Many people with masochistic feelings do not really want to be hurt badly. They want to act out their daydreams, such as being tied up and kidnapped, or becoming the slave of another person. In BDSM, people often agree who will be "dominant/dom" and "submissive/sub" before they do anything together, and talk about exactly what they will do before they do it. People who do this kind of masochism usually do it for sexual excitement.