I was walking down a narrow street in Norwich about 6 years ago with DD (then aged about 4) 7 her best friend
I said "Single file now - until we get past the building" & the little girls did - so did the couple (mid 50's) walking ahead of us
They then turned, saw me & smiled saying "We thought you were in charge - a police woman or something.....you sounded just like Joyce Grenfell"