I think seven people have worried about it or even tried to go down the chimney to see what would happen! Big Bird thought Santa could hold his breath and that's how he'd get down. When I was little I didn't worry too much about it, though. I did have a little plastic toy Santa that I thought should go down a skinny plastic chimney in the story, to match everything. And when I was little I thought the television set was operated by little characters you could plug and unplug if you wanted it to work. Not until I discovered the on off switch did I realize that my plan to hide the news characters so I could watch Sesame Street instead of my parents' boring old news shows would be a fail!