“You’re an open book…with some pages missing”

How mysterious should someone be?  Is it refreshing or a turn-off when someone truly is an “open book?”  I’m sure it depends on the situation/relationship.  I would love my lawyer or business partner to be an open book with all matters concerning our business relationship but I don’t really want to know why he no longer sleeps with his wife.  Unless it’s because she thinks he’s an awful lawyer.

I said the quote above last night and it seems to click with me.  I like that.  Someone should be 80-90% open book.  Don’t want to be shady like you’re hiding a majority of your life.  That said, don’t let me read the book of your life cover to cover in the first week I know you.  So to the person I said that to, thumbs up.  =)

Any horror stories with someone being too mysterious or too giving of information?