Critics of plastic shamans believe there is legitimate danger to seekers who place their trust in such individuals. Those who participate in ceremonies led by the untrained may be exposing themselves to various psychological, spiritual and even physical risks. The methods used by a fraudulent teacher may have been invented outright or recklessly adapted from a variety of other cultures and taught without reference to a real tradition. In almost all "plastic shaman" cases a fraud is employing these partial or fraudulent "healing" or "spiritual" methods without a traditional community of legitimate elders to provide checks and balances on their behaviour. In the absence of the precautions such traditional communities normally have in place in regard to sacred ceremonies, and without traditional guidelines for ethical behavior, abuse can flourish.