We walk a fine line when describing our characters' thoughts and actions. We don't want them to be too intimidating, or the reader may not identify with them. One way to achieve this is to let our characters make mistakes. That way they show their human sides.
The problem with letting our characters make mistakes is we don't want them to seem too stupid or no one will like them. I'm sure you've read those kind of books or seen those type of movies where the hero or heroine is too stupid to live, running straight into danger instead of doing the sensible thing to avoid it.
Some authors allow their character to make mistakes in judgment by trusting the wrong people or being overconfident in situations where danger is involved.
Have you noticed characters make mistakes? What type? Have you let one or more of your characters make a mistake? Please share.