Growing up, my house had a mailbox right at the front door, which was a bit different from most of my neighbors who had mail slots in their doors. It was fascinating to see mail delivered directly into their homes, but I always felt a twinge of sympathy for our Mailman Tom, who had to climb hundreds of sets of stairs each day. Despite the physical challenge, he always wore a smile on his face. Remarkably, I bumped into him two years ago in an entirely different place, and he looked exactly the same. I couldn't help but wonder if those stairs somehow acted as a secret fountain of youth for him!