| Clue | Source | Date |
|---|---|---|
| Popeye's girl is going round with chaps - that's a bad sign | ||
| Sign of trouble | LA Times Daily | 25 May 2025 |
| Growth of conciliation upset workers - a bad sign | ||
| Bad sign | Universal | 19 Dec 2023 |
| Very bad sign | USA Today | 12 Oct 2023 |
| It's a bad sign | New York Times | 19 Feb 2021 |
| It's a bad sign | The Washington Post | 26 Oct 2019 |
| It's a bad sign | LA Times Daily | 26 Oct 2019 |
| Hex sign | Newsday | 24 Aug 2019 |
| It's a bad sign | ||
| Black cat, to some | Newsday | 01 Jun 2016 |
| Sign of trouble | The Washington Post | 21 Feb 2016 |
| It's not a good sign | ||
| Not a good sign | ||
| Not a good sign | ||
| Indication of very bad things to come | ||
| Paintball gun brand | ||
| Doomsayer's citation | ||
| It's not good news |