I do believe “It’s a small world....” is why I originally quit attending Disneyland in Anaheim, California. That damned tune keeps in the head for days, weeks, sometimes months before it can be shaken off. It’s like SuperLeech on the brain.
Back in 1965 my 5th and 6th grade classes took field trips to NYC for the World’s Fair. They were awesome, fun trips, but I remember to this day getting that ‘Small World’ song stuck in my head. I think they were playing it over and over at a fake Belgian town or something...