Very specific weird fear:
One time, when I was a kid, I was on a road trip and we stopped at a McDonalds for some food and to use the bathroom. I went into the bathroom and the floor, walls and ceiling all had the same tile covering them. I don't know why, but when the door closed, I was so fucking terrified I made it halfway to the toilet and then turned around and ran out. It was such a strange experience and I have no idea why it got to me that bad.
Crazy that swearing in front of kids is bad but watching their dad fight someone is good. Maybe less about protecting his kids and more about insecurity.