I tried this. I don't recall it hurting at all because of the adrenaline. I used a scalpel. Unfortunately survival instinct got the best of me and I was found. After that, I was in a psychiatric ward for a few months. It was horrible. Now I have an ugly ass fucking scar on my neck which has caused me great anxiety especially when meeting new people. Honestly, it is one of my biggest life regrets. I would strongly recommend AGAINST this. In the high chance situation that you get caught, you will 100% be sent to a psychiatric hospital against your own will.