Have you ever noticed that the thumbnail images for Recommended Videos on YouTube can sometimes be either inappropriate or undesirable? Perhaps you are a schoolteacher who is tired of sexually explicit images popping up at the end of educational videos you show to your students, or maybe you're just somebody who'd rather not take chances when browsing YouTube with a child or friend. Whether you are seeing unwanted video thumbnails on your YouTube homepage or at the end of videos you have watched, these steps will make it possible for you to disable (temporarily, if so desired) these images from view without impacting your ability to watch the videos you choose.