Erikson devotes specific attention to what happens to each colour type under stress, because stress behaviours are where miscommunication and conflict most commonly escalate. Under stress, Reds become more controlling and domineering than usual. They push harder, talk louder, and tolerate even less delay or ambiguity. They can become genuinely intimidating. The most effective response is not to back down entirely (which they read as weakness and exploit) or to escalate (which creates a destructive conflict). It is to hold your ground calmly with clear, direct language. Under stress, Yellows become more chaotic and unfocused. They jump between concerns, talk more than usual, and lose the ability to prioritise. They may become dramatic or emotionally volatile. The most effective response is to slow the conversation down, bring them back to one thing at a time, and offer specific practical help. Under stress, Greens become withdrawn and passive. They agree to things they do not agree with, avoid all conflict even when they are harmed by it, and can become quietly resentful without expressing it. The most effective response is to create a safe, unhurried space for them to share what they are actually thinking and feeling. Under stress, Blues become even more detail-focused and critical. They find more problems, request more information, and can appear pedantic or obstructive. The most effective response is to take their concerns seriously rather than dismissing them as overcaution, and to provide more evidence and structure, not less.