It's only the weak and unconfident that are threatened by such things.
The other end of the same phenomenon is you miss the first throw, you get unconfident, and you miss the second one as well.
Her standards of right and wrong were shaken; the wholesale assaults on her ideals left her shocked and unconfident.
1570s, "self-reliant, sure of oneself," from Middle French confident, from Latin confidentem (nominative confidens) "firmly trusting, reliant, self-confident, bold, daring," present participle of confidere (see confidence). Related: Confidently.