As an example of the problems these can cause, Peng Chi-ming tells of a PR company that was subscribed to Peng's information service, but still ended up with ten out of around 60 events rained out.
彭啟明舉例，過去曾有一家公關公司訂購天氣資訊，結果一年 60 多次的活動，仍有 10 次碰到下雨。