I never notice anyone, ever. I guess I'm a celeb's dream because I just walk right by them. I know I must have past by someone at sometime in WDW but never noticed. I used to work in the Hamptons in a very upscale luxury store. I would talk to clients as they came in, after the conversation, people I worked with would say, do you know who that was???? Honestly, people look so different in real life without make up and hair and dressed down. I did meet without my knowing it - Peter Boyle, Donna Karan, Michael Eisner, tons of Soap Stars, Stephen Speilberg, P. Diddy to name a few, artists and musicians and famous wealthy people (who are just famous by being wealthy!) but I did not know until someone else told me who they were. I would go to their homes to drop things off and you would drive thru woods and a long driveway and all of a sudden you would see this huge mansion! I think they were kind of relaxed feeling incognito - as I never mentioned anything to them cause I really did not recognize them. It's funny though I would see their pictures in Vanity Fair and say - Oh that's who that was!
I did see Ozzie and Sharon Osbourne in Saks 5th Ave in Nov/Dec (?). I did however, recognize them! (but I would never say anything to them).