What is your worst experience with something getting lost in the mail?

When my dad died his wife sent us all mementos of him. I got all of his hats. To my daughter, who lived in an apartment complex, she sent a ship in a bottle that my father had painstakingly put together, and carefully painted, years before.
The mail person put it in the wrong mail box. We knocked on doors, I took out an ad, but it never came back.