The type of stuff we had to deal with was normally minor, like being in the halls during lunch, running inside etc. I also had to break up a few fights, get some kids down from a very tall tree, stop kids being bullied. Stuff teachers should really do, but get older kids to do for free so they can have their lunch.
I love your last sentence here. So teachers shouldn't have time to eat? I had a twenty-minute lunch period. Now take off three minutes at the beginning and the end for corridor duty. (And I taught at an upper middle class public school in fairly-liberal MA, USA.)
I find it interesting reading this thread, as most of you (I think) are recounting your school experiences, which I could do, too. But being a former teacher (now retired) here is my take on it.
When I started teaching, we used hall passes which were essentially a block of wood with our room number carved in it. Some teachers painted or decorated the block. It was a handy way to show who was allowed out of the room, but it didn't indicate where that student's destination was, or how long he/she should be out of the room. I recall friends of mine who weren't teachers laughing at the idea that 'we needed hall passes, just let the kids out when they need to use the bathroom, etc. etc.'
We needed hall passes because sometimes a child would pull a fire alarm when alone in a hall, or set a fire in the bathroom, or plug up the toilets. (We had one or two of these incidents a year; not bad for a school with around 600 students.) We switched to written passes so we had a record of who was out of the class and at what time. (Teachers collected the passes and stuffed them in a desk drawer in case administrators needed to go through them later. Ummm...who was out of class at 10:12 when the alarm was pulled?)
Passes are a passive sort of security check and a means to watch the activities of 600 children when out of the sight of adults.
We never had teachers or aides, etc., in the halls until right before I retired. It was part of an assigned duty to grab a desk, pull it into the hall and sit there and read or correct papers, asking to check passes (and school-issued IDs from adults who had permission to visit or were working in the building.)
As for detention, usually a good teacher gives about 1,000 warnings - no, you may not sit and make fake farting noises all period - until issuing a detention. It can be for teacher detention (some infraction done in class) or office detention (given by the school administrators.)
After a few years of teaching I gave up on detention. My take was, this kid is driving me nuts in class, why would I want to spend 30-45 minutes with him or her after school? I used peer pressure to keep kids in line; it worked 99.9% of the time. My take was this: oh, too bad Joey can't shut up, it means I just won't have time for that experiment, demo, movie, video, passing out candy, etc. etc.
(The .1% who didn't respond to this approach were sociopath-type kids who didn't care what other kids thought about them. They were very rare. I had to toss maybe 8 kids out of my class permanently in over 30 years of teaching. I think most of those kids are in jail now or are dead.)
Maybe I was lucky where I taught. I saw very little bureaucratic nonsense. Rules existed for specific purposes and when they didn't work, they were shelved or adjusted. Our aim was to keep the kids safe, first and foremost, and everything moved from there.
I can't think of anything unusual we did, though, like a rule which would be unique to the school. One thing which was a common 'custom' at all the schools in the town I taught was to call every absent student's home in the morning. After attendance was taken and reported to the main office, a secretary, office aide or school volunteer would call to make sure the absent child was legitimately home sick or on an appointment, or the parents knew they were home. As a result we had a very low truancy rate and we never had the horrible situation of a parent thinking their child was safe at school, when they weren't. When I would mention his practice to friends who taught in other towns they were omg, who can afford the time and personnel to do that?
We did it. We accounted for all our students every day. I know that now there are automated programs which do the same thing. We also didn't allow our students to go home with anyone who wasn't on a designated release form, especially non-custodial parents. I walked in on many an argument in the main office with a parent yelling that he wanted his kid, regardless of who was on the 'form.' Police would be called to intervene in those situations.
In most cases, school or otherwise, if a rule or law exists, it has to have a background, history or reason for that rule. Yes, sometimes rules are stupid and arbitrary, but I saw very little of this when I taught. In fact, if a rule was stupid, we teachers would speak out either alone, in a group or through our union to question it. At one time we had one-way corridors. Our school was pushed to overcrowding and you could only go up one staircase, down another, and halls were one way. After a year of this, we protested and said this is crazy. Crowded is crowded no matter which way you're walking, so this rule was ended.