I love it when characters surprise you, just like real people. When I write a scene I just try to make the characters behave in a way that feels natural to them. Sometimes that means they make a left turn and do something unexpected. Those are always the best scenes in my opinion.
Living the past is a dull and lonely business; looking back strains the neck muscles, causing you to bump into people not going your way.
Riding a bicycle is about getting back to basics. It's good for the waistline and it's good for the wallet, is what I'm saying.