True story: I was fiddling with my wedding ring many, many years ago in a movie theater where it's a big auditorium with a sloping concrete or tile floor. I dropped it and you could hear the clink, clink, clink as it rolled on the hard floor all of the way from the back of the theater to the front. I had to wait till the movie was over to go rushing down to the front and there it laid in front of the stage. Never hit a foot while rolling almost the entire length of the theater. I don't remember the movie but there must not have been hardly anyone in the audience.