You must make a self-control roll any time the GM feels you show an unreasonable degree of caution. If you fail, you must go ahead as though you were able to handle the situation!
Make a self-control roll whenever you face a life-threatening situation: piloting a burning vehicle, staring down an entire street gang while armed only with a toothbrush, etc. If you fail, you may not back down from the challenge – but you may roll again after every success roll or reaction roll relating to the situation. In combat, make a self-control roll every time you take your turn. If you fail, you must make an All-Out attack or engage in some other kind of near-insane, suicidal behavior.
from others if they witness your On the Edge behavior, unless it is someone who values bravery over self-preservation (GM’s decision), who will react at +2 instead