Unwanted effects emojis quickly signal trouble or caution without saying a word. Use 🚨📉 in a post-mortem report or after a bad trade, while 🚷😷 fits well in health warnings or pandemic-era posts. The ⚡💡😵 combo captures that sudden jolt of confusion or an idea gone wrong. When things spiral, stack 🚨📉📉 or go scientific with 🧪💊⚠️ to underline a recipe for disaster or side effects.