Rain on someone's parade
"Rain on someone's parade" metaphorically describes the act of undermining another's joy or success with unintended negativity. It highlights how comments or actions, even well-intentioned ones, can inadvertently dampen someone's spirits or diminish their achievements. This expression underscores the importance of being mindful of the impact our words and attitudes can have on others, encouraging empathy and support in both personal and professional interactions. Ultimately, it reminds us to celebrate others' successes and milestones with positivity and encouragement.