Haha.  Cool.  An interesting 'side effect' of developing a little proficiency with lucid dreaming is that you can usually shut down nightmares fairly easily.  In fact, you can take total control over everything that happens in your dream.  It's lots of fun and can be very therapeutic.  Most of us can't get lucid 'every time', but that's ok.  We can learn how to improve our chances a lot and that's good enough.