Historical clue formulations

• "Yikes!" ... or, phonetically, a hint to 17-, 28-, 46- and 61-Across — 2025-05-19
• "Man, you gotta be kidding!" — 2022-08-13
• "You've gotta be kidding me!" — 2021-04-20
• "Yi-i-ikes!" — 2017-02-05