September 14, 2001. I had just arrived on one of the first flights out of LAX, after air traffic had resumed. We were in the middle of Tropical Storm Gabrielle - moderate rain, but strong winds.
After checking in at Yacht Club, I walked into Epcot via the IG for early entry. (It wasn't yet called "EMH".) And after passing the turnstiles, I'm not exaggerating to say I did not see another human until I got to MouseGear. I was soaking wet by that point, and my umbrella had turned inside out more than once.
A few hours later, at noon I think, was scheduled the national moment of silence for 9/11. I was standing in front of the German pavilion, at the water's edge. And believe me, I had a moment of silence. I couldn't see anyone for probably 150-200 meters. No doubt they were around, staying dry or eating lunch inside the pavilions, but World Showcase Promenade was as deserted as it will ever be at noon.
In many ways, it was a surreal week. How about walking up and getting breakfast at CRT - twice. (And this was back in the days when only breakfast was a character meal, so it was the toughest ticket in town.)
A few years later, I stayed late in World Showcase to watch the propane blow-off after Illuminations. I walked out at about 1045, and between Italy and the IG I think I saw two CMs. Even the exit was unattended - anyone could have walked in.