This is kind of ghost/monster-like since that's what reportedly typically manifests. https://digg.com/video/history-bloody-mary-mirror-trick-why-actually-works I watched this video with the open mind of a skeptic, (impatiently, since it took them over five minutes to actually get to the point), and it turns out this has some real demonstrable science behind it. Essentially, if you look into a mirror long enough, under the right conditions you will (may) see a yourself turn into a monster (a dissociative effect). There's a section in the video at 5:50-6:20 that very effectively demonstrates a related effect. You may have heard of it before as the "Celebrity Face Distortion" - I had not seen it before, and it was very effective for me. Doing it to yourself in a mirror adds the creepy immediacy of being in real-time and right in your face, and - well - you. I'm gonna try this next time I have a mirror and a 25-watt bulb.