Were you singing the 'trolley song' from "Meet Me In St. Louis"? The one CM sing on Main St. USA? you know, 'Clang, clang, clang went the trolley, ding, ding, ding, went the bell?" That is one of my all time favorite musicals. We always sing it as we walk down MSUSA..that one and of course "I'm walking right down the middle of MSUSA".
Side note..we rode Splash Mountain in July with a woman and her child, they were behind us. The woman kept yelling things to her son, my youngest kept telling me to be quiet because she thought I was the one making the noise (and it was pretty comical). At one point mom and son stood up in the boat to get a better wave off to grandma and grandpa! Then mom says "Its fine son, I've been riding Splash Mountain every trip for the past 25 years. Its one little hill and nothing more". I don't know if mom was confused or what. But it was interesting.