I was obsessed with buttoning the top button on casual shirts. It felt safer to me to be buttoned up tight, probably because bodily autonomy was non-existent in my family. My mother HATED this habit. It got to the point where whenever she caught me with the top button closed, she would reach in with one finger, hook it behind the button and yank hard enough to pop the button off the shirt. It hurt like hell and usually caused bruises on the back of my neck along with a scratch from her fingernail in front. More than once she had to pull so hard, she backhanded me in the chin when the button finally popped off. She would always say, "That's one collar you can't button anymore".
Now, I can't stand to have anything around my neck.
Thanks mom, you saved me from walking around with my shirt collar closed.