Yeah, that was a crappy and irresponsible thing for her to have done. I don't know that it says anything about her sanity, though.
Halle Berry: ‘Hit-and-run changed my life’ | Daily Dish | an SFGate.com blog
And the suicide attempt....hmmm, does depressed count as crazy?
Halle Berry Admits to Suicide Attempt - Halle Berry : People.com