Things have a nasty 'habit of not turning out' the way you expect them to. [=things often do not turn out the way you expect them to]
He reached into his pocket for his keys 'by/from force of habit'. [=he did it without thinking because it is what he usually does]
I'm 'not in the habit of' making predictions, but I don't think there's much doubt about who will win this election.
(..) I hope he's okay to drive. It's you. Oh, man, I really love your show. Thank you so much. - What? I had some pretty bad habits back there that I don't want to fall into again. Maybe it's time I got a new start. - I'm gonna be a C.E.O. - At Starbucks? (..)2006 Idiocracy