Should Characters be Sensible?

The Read: Catcher in the Rye by J.D. Salinger
The Write: April exercise for Books and Writers (Thanks, Ron & Claire!)
The Gleaning:

A character that will really drive a story had better not be sensible. A sensible character will tend to avoid the dangerous, the risky and the just-plain-stupid decisions. A sensible character will sit at home, painting her toenails and watching When Harry Met Sally for the 17th time rather than meeting the flame from her past at the motel on the highway, and setting off on a cross-country trek that involves bank robbery and the occasional murder. Smart, sure. Interesting, keep-the-reader-up-too-late, fast-paced story, not so much.

So I'm off, to knock some sense out of my new MC.