I went to the same Catholic School from Kindergarten to Eighth Grade, and it was an experience to say the least.
One example is the concept of Silent Lunch, which looking back on it, was probably super spooky for anyone that walked by the lunchroom during that time. I mean can anyone even imagine a grade school lunch room being completely silent? I talked to one of my friend's moms about it and she said she walked by the room one day to go pick up something and was creeped out by it. She said "All you could hear was the light noise of chewing food", which sounds like horror movie shit.
It was such a regular part of my school experience that TV shows featuring kids in the lunchroom confused me. "Why are they allowed to talk? Why is no one screaming at them to stop talking?". It was a very warped experience when I look back on it.
So basically, we had to sit in the lunch room, in complete silence, for the entire lunch period. Talking would cause you to lose your recess. Even communicating via crude sign language would cause this punishment to be levied at you (I once lost my recess for arranging a lunch trade entirely by tapping on shoulders and pointing at the food). And if you got caught, the lunchroom proctor would point you out and SCREAM at you and then have you stand up for the remainder of lunch, and then when recess starts, you come and sit at the front of the room to be part of "The Lunch Bunch". By the way, the teacher yelling at us was one of those reasons I thought the screaming librarian from All That was a funny bit in my youth because so often, I found the teacher yelling to be far more distracting and annoying than any whispering among the kids.
I remember one time, in Third Grade, I begged my teacher to let me stay in the classroom and eat because I was scared to death to go in there. I even told her "Look, I'm a fat kid. Lunch should be my favorite part of the day, but I'm almost too scared to eat because I'm afraid to make any noise". I didn't get my way, but it was indicative of what the atmosphere was like.
Now fast forward to High School and I found out I had a VERY hard time talking to people during lunch, even though I was completely allowed to do so now. It took a long time to beat nine straight years of lunch time silence out of me.
Looking back on it, the logic for the silent lunch was probably that the school administrative office was right next to the lunch room and they wanted to make sure the staff could hear the phone calls coming in and things like that. Okay, I get that I guess, but then why not just close the door to the cafeteria? Or screw it, why not just let us eat in the classrooms?
There are plenty of other weird things that went on at that school, but Silent Lunch is the big one that makes people go "huh?" when I tell the story. Some of my friends are teachers now and they can't even imagine a silent lunch room with a bunch of grade school kids, and others weren't sure I was describing a grade school or Juvenal Hall.