Rigid At the other extreme, rigid boundaries involve building walls to keep others out as a way to keep yourself safe. But staying safe by locking yourself in is unhealthy and leads to a whole other set of problems. Whereas porous boundaries lead to unhealthy closeness (enmeshment), rigid ones are a self-protective mechanism meant to build distance. This typically comes from a fear of vulnerability or a history of being taken advantage of. People with rigid boundaries do not allow exceptions to their stringent rules even when it