It did make me wonder, though, whether she would ever be able to go into a supermarket while so attired. If she went into different store, say the Co-op, I imagine she would be driven out by staff enraged by her livery, much as crows will mob a sparrow-hawk. But if she went into a different Sainsbury's the following exchange would have a certain comic inevitability:
C [to the cashier]: Just this chewing gum, please.
Cashier: That'll be 45p.
Manager [interrupting]: You! Get to Till 13 right away! Don't you know we're understaffed today?
C: Me? But I'm only buying some chew--
Manager [hands already bunching into fists]: Don't answer back! Till 13 - hop to it!
C: But I don't even work here.... [Is bustled away to Till 13 and spends the next 7 hours weighing carrots.]
I don't know why I imagine all managers as ex-RSMs, but I do.