As Rut said, it happens if you work long enough.
I had an AD mark me off 7 years ago. Know why? We had the toliet bowl game in a tourney. After the game, we go to the hospitality room to grab a soda. He comes in and tells us we're not allowed there. Mind you the sign says, "Coaches, VIPS, and Officials Only." I told him that was fine but he needed to tell the assignor so all officials would know. I also told him that officials had been there for the previous two days and no one else said a word. Got the markoff two weeks later.
Get this, I still woek his school in football 2-4 times a season. Go figure.
Presently marked off at two schools and proud of it.