So request for milk money two Mondays ago (Paid this Monday, to another teacher not class teacher but not really relevant to this). Today received a copy of the original request with a red overdue stamp across it. No 'perhaps you've forgotten, or dear parent in case you didn't get the original letter can we remind you'. Nothing remotely polite.
Bear in mind this was not an invoice with a date due, it was a generic letter asking for money.
AIBU to complain about the lack of politeness? I am beyond pissed off at the sheer bloody rudeness of this and am currently composing a rather impolite letter by return. (In my head so far!)