Now I have long hair and I resist the urge to tat it when I'm stressed.
Having said that: it must be a sign of my recently anxious state that I've braided over a dozen teeny, tiny little plaits in the underlengths of my hair. They aren't corded with elastic; I just have to braid them and then move on. I don't know why.
I need to calm down. I tried eating ice cream instead, but braiding is more relaxing.