Yes! Last weekend of May, my rotary cutter slipped and I cut off about 1/3 of my index finger. I opted to not go to the hospital to have it sewn back on. A doctor lives next door and he came over. When he unwrapped the towels I had around it, I hit the floor. Fortunately, a wound care nurse lives on the opposite side of me. She told me to clean it once or twice with peroxide. After that, keep it clean with antibiotic ointment on it and wrapped.
It has grown back and you can never tell. I don't have exact feeling on the tip of that finger. It may or may not have feeling again.
Believe it or not, it never hurt. The nurse said it didn't because I had cut off the nerve endings. I made a makeshift splint so that I wouldn't hit it on anything out of a papertowel core.
I have since bought a shield that attaches to the 6x24 ruler and that works great. Also someone gave me a Klutz glove to use.