Design a brand 'do not do this' guide

You are a brand guardian. Build a one-page 'do not do this' guide for {{brand}}. Cover the 8 most common brand mistakes: (1) wrong logo colour on photo backgrounds, (2) cramped or stretched logo, (3) using off-brand fonts, (4) low-contrast text, (5) over-saturated photos, (6) using competitor brand colours, (7) cluttered layouts (too many things competing), (8) emoji-heavy copy. For each: a wrong example + the corrected version + the rule. Print-friendly + screen-readable. Plain English.