I really rarely nick myself. I usually use a towel to grab the head of the razor when tightening/loosening it for cleaning or changing blades. Luckily for me I

I really rarely nick myself. I usually use a towel to grab the head of the razor when tightening/loosening it for cleaning or changing blades. Luckily for me I have not cut myself yet in the process. I have a scar on my pointer finger from a deep cut from playing with the head of a HDD as a kid. It is similar to a deep razorblade cut. It still aches sometimes 20+ years after the accident. Be careful!