Of course you might miss your exit, cause an accident, or otherwise become a hazard to all others who share the road with you. :-) or :-(
I miss my first exit at least once a week, so it doesn't bother me anymore. The Good Lord has spared me the experience of deer and accidents since moving here half a decade ago. Will it continue? Beats me. I don't believe that I am a wandering hazard since I really do stay in the center of the lane with the cruise control on. But who's to say? The poor folks who share the road with me?
At any rate, I'm not talking on my cell phone, texting, eating, smoking and putting on makeup all at once. And reading a newspaper. Those folks really do need dealing with.