After retirement, a former coworker suddenly showed up at my house, but I don't recall having told them my address.

How did we meet? Well, he was a junior colleague at the same company, and eventually everyone around us started treating us like rivals. A few years later, when I quit the company, he showed up with a bouquet of flowers and proposed to me. What did I think? ...I realized this guy had been calling me "Maki-san" in his head all on his own.