1.   Tim is listless on the job and keeps making dumb mistakes.

2.   A dumb mistake, and Chris feels very badly about that.

3.   Can the players learn not to make dumb mistakes?

4.   Confronted by the same decision a few holes later, we make the same dumb mistake.

5.   David Silverstein was apologetic, admitting he made a dumb mistake by bringing the device to school.

6.   He made dumb mistakes, but he did not seem to have a mean streak.

7.   I had a good time building it, even if I did make a dumb mistake.

8.   I have never been in a game where we made so many dumb mistakes.

9.   In doing so, I made a really dumb mistake.

10.   Is this a brilliant marketing coup or a dumb mistake by some unwitting Web designer?