history: One time when I was a kid my mother almost drove off of a high, long bridge. She was too busy yelling at me and not paying attention.  One time_comma_ when I was a kid my mom almost drove us off a high bridge_comma_ by accident.  
current: Wow! How traumatizing! Were you scared at that time? 
next: I didn't have time to be scared. She was busy yelling at me and not paying attention. 