Have you ever made a choice where the outcome was something mundane? Let's say you decided to walk to the convenient store to buy a container of milk. Since the store is about 5 minutes away on foot, you'd normally drive, but without giving it much thought you walk to the store. You arrive at your destination, pick up the milk container, pay for it, and go back home. Boring! But wait! In one alternate universe, the other you gets run over by a truck. In yet another alternate universe, the other you meets someone interesting and gets a date for the night. The fact that that version of you is married, didn't matter because that you has no morals. In another version, you love walking because it's easier to spot your next kill. Get the picture?
I guess what I'm getting at is that it's a good idea to treat your characters the same way, always looking through the eyes of someone who sees alternate plains of existence. Let's face it, if we lived in other author's created worlds, getting milk would be quite an adventure. Imagine living in one of Laurel K. Hamilton's worlds. You go out for milk and pick up a hot babe, only to find out she's a werewolf, or vampire or whatever. Just because our lives may not be so exciting, doesn't mean our characters have to imitate us. ;-)
Until next time. Look for me at a theater near you. I just may be the quiet psycho sitting next to you, scheming, drooling for the chance to get you alone. Oops, that's not me, that would be one of my alternates in another realm. Oh well, catch you later.