Sandpaper Fingers

The videos all had that same one part. The one where her fingers sounded like sandpaper just scrapping against skin. I imagined nails on the chalkboard in that moment and decided the sandpaper fingers sound may be worse. And then because I was imagining so much I not only missed the point of the educational videos but I also thought with all that sandpapering there should be blood but there wasnt and then I was confused. I am not sure I will be able to sweet tap or facilitate movement now without imagining sandpaper fingers and then frantically checking to make sure my hands are soft and unsandpapery. I would probably learn more if I didnt get lost in tangents of my own imagination so often.