源自滑冰运动，如果冰层太薄，随时可能掉入冰冷的湖水中。它强调由于某人的言行已经引起了不满或违背了规则，现在正处于一种“随时可能受罚”的危险边缘。

• You’re skating on thin ice by coming in late for the third time this week. ^{你这周已经第三次迟到了，现在的处境如履薄冰。}
• I wouldn’t say that to the teacher if I were you; you’re already skating on thin ice. ^{我要是你，就不会对老师说那样的话；你现在的处境已经很不妙了。}
• The company is skating on thin ice with its latest controversial advertisement. ^{该公司最新的争议性广告让其陷入了非常危险的境地。}