I met Mr. Rogers when I was in college. We (the ADPis and the Pikas) were volunteering to answer the phones at WQED for a telethon, and during a lull, the staff told us to take turns with breaks. About 4-5 of us were wandering around WQED and discovered the Mr. Rogers set! We started playing ("Oh, look, it's King Friday's Castle! Owl's Tree! The Trolley!") and generally acting like kids.
I glanced up at the doorway, and there stood Mr. Rogers, with a beatific smile on his face. I immediately apologized, as did everyone else, and he said, "No, no - it's been fun watching you all enjoy the Neighborhood!" We all shook hands with him, told him about the telethon, and went back to work. What a sincere, gentle man!
The neighborhood is a little darker today...