Eventually something big will impact the Earth; it has after all happened before. But Im not about to freak out or fret over this very small possibility. Statistically speaking the chances of an extinction level event happing during our life time is quite small.
And if one day should it happen during my lifetime; Im going to get a lawn chair, pour me a good strong drink and sit back and watch the show. If we were to be impacted by an extinction level event, thats about the only thing I could do and Im going to at least enjoy the fireworks and go out with a bang! LOL!