On his Hilarious Pessimist blog Dalrymple responds to this letter accompanying his renewed parking permit:
The permit must be displayed so that all the details can be seen clearly when inspected from the outside. Failure to do so could result in a Penalty Charge Notice being issued for non display.
No niceties such as ‘Please display the permit so that, etc., etc…, because you might be given a ticket if you do not.’ Why bother with verbal chivalry when you don’t have to, and when it might in any case mislead people about the real power relations between them and the council?
H/t Teddy M.