"The only thing my students seem to focus on, however, is the spinner, itself, and not their work," teacher Cristina Bolusi Zawacki recently wrote on Working Mother. "It’s like a friggin’ siren song. The allure of someone else’s spinner spinning is too much to bear. What color is it? What type is it? What shape is it? What’s it made of? How many arms does it have? Are there removable ball bearings in it? What are THOSE made out of? Those are the worst part of these fidget spinners. When the ball bearings fall out in the midst of excessive, overzealous spinning and clatter all around my classroom floor mid-lesson, and they always do, it sounds like Plinko ... in hell."