When you experience the loss of a loved one, it opens your eyes to how precious life is. You act more consciously and thoughtfully towards others because you never know if it's the last time you will interact with them.
August 13th, 2003 was the last time David Rutherford spoke to his father, Kelly. David recalls this moment with clarity because he was wishing his parents goodnight and accidentally said "goodbye" to his father. When David awoke the next day, he found that his father had passed away in the night. Having said "goodbye" that night has always felt like a strange irony.