It was the day before yesterday when
Billie and I had one of our rare wtf?! moments on the phone. We were throwing random facts about the third Harry Potter book at each other and discovered that we both knew a quote, the Missing QuoteTM, which is simply neither in the book nor in the movie (which was unlikely, yes, but a possibility). It's supposed to be in Chapter Five where Lupin is supposed to tell the dementors that...
"Nobody is hiding Sirius Black under his robes!"
I'm quite sure everybody who reads this knows it because I remember many laughing-fits I had with people thanks to that line. But where does it belong? Fanfiction? Which? An essay everybody of us came across at least once? Where is it?
Edit:
Found. Oh my, this is embarrassing.