| Clue | Source | Date |
|---|---|---|
| More apt to complain | Premier Sunday | 30 Jul 2023 |
| More prone to complaining | Wall Street Journal | 16 Jan 2021 |
| More apt to complain | USA Today | 06 Apr 2015 |
| More apt to complain | Universal | 05 Jan 2015 |
| More apt to complain | ||
| More apt to complain | ||
| More prone to bellyaches | ||
| More complaining | ||
| More apt to snivel |