limited
I really wonder about the kind of person who remains on duty after home time, ever vigilant for petty infringements of rules
Teachers don't get to pick and choose about these things. If them's the rules, they have to apply them.
If I was that teacher I'd spend 30 minutes tidying up my pens after school so I didn't have to share the bus with my pupils
First of all, teachers have way more than tidying up pens, so please don't trivialise the work they do once the pupils are out of the door.
Second, I can't think of anyone I've taught with who would seek to be on the same PT as pupils.
If by some horrifying chance I found myself with them I'd slink really low in my seat
Then you'd be a wanker. If you're in their company, you're still the teacher. The correct thing to do is nod and smile if they do so, ignore if they do. If they fuck up. You step in.
Your post manages to disparage that teachers are expected to do and actually do, while proposing conduct that would be unacceptable.
Aderyn, he obligation to intervene as a teacher to prevent harm is beyond the moral and is, I believe a legal obligation. Your judgement that uniform is petty is not within the remit of the teacher to decide if the school, i.e. the governors, not the teachers, decides otherwise.