| Answer | Crossword Clue |
|---|---|
| DOH | "How stupid of me!" |
| OOPS | "How stupid of me!" |
| DUH | "How stupid of me!" |
| DOH | Homer's "How stupid of me!" |
| OFME | "How stupid ...!" |
| OFME | 'How stupid --!' |
| ADUMB | "What .. idea!": "How stupid!" |
| DOH | "How could I be so stupid?" |
| ONADARE | How many stupid things are done |
| DUH | "How could I be so stupid?" |
| GIMMEABREAK | "How stupid do you think I am?!" |
| DUH | "How could I have been so stupid?" |
| SNERD | Mortimer who was asked "How can you be so stupid?" |
