When N is being especially fussy, she often gets a stern look and rejects every attempt at making her happy. She will furrow her tiny brow and scowl in a way that reminds me a lot of my fifth grade teacher and the nuns who ran my elementary/middle school. With that one look they could let you know the following things:
1. I saw what you just did
2. I know how disobedient you are, even if you are acting like you are obedient
3. I heartily disapprove
4. Your parents will hear about this
And so I call N "Sister Mary Yellypants" when she is handing out demerits to me. C had a similar persona, The Boss, who was a disgruntled bureaucrat who pitched a fit when you did not file all the appropriate forms in triplicate. This would often happen when I took a shower or went out to get the mail (or, heaven forbid, out for the evening) without prior approval, for example. Man, I used to spend HOURS in HR explaining myself...
Happily, The Boss is no longer a large part of C's personality, although there is a Napoleonic persona emerging these days... "Fire the cannons! Because I say so, that's why! Lay SEIGE to them! They SHALL NOT STAAAAND!" And then he gets sent into exile, though only to his room, not a remote island.
But I kind of hope Sister Mary Yellypants hangs around for a while. To be honest, I like a girl with a little bit of sass.