I laced my braid with thumbtacks as a self defense tactic

I (28F) was 24 years old at the time, and worked in this independent kitchen with no HR department as a cook for several years. There was a brief period of time where a coworker was pulling my hair repeatedly after being asked and told not to. He didn’t even stop when my managers told him to fuck off. So I got permission from my sous to take things into my own hands. I braided my hair for work one day and wove thumbtacks in. I was met with a yelp when he tried to pull my hair again, and he never did it again. This has been on my mind lately because it was traumatic, and I wish I got some sort of justice, but at least I was able to stand up for myself.