"You have not asked me, for instance, what is my favourite flavour of jam... For future reference, Harry, it is raspberry...although of course, if I were a Death Eater, I would have been sure to research my own jam preferences before impersonating myself."
The woman gave an angry little titter. “Think your little jokes'll help you on your death bed, then?” she jeered.
“Jokes? No, no, these are manners,” replied Dumbledore.
"Merlin’s beard, no." said Dumbledore smiling, "Not unless you are foolish enough to force me to."
"He will not be single handed!" said Professor McGonagall loudly, plunging her hand inside her robes.
"Oh yes he will, Minerva!" said Dumbledore sharply, "Hogwarts needs you!"
"Dumbledore would have been happier than anybody to think that there was a little more love in the world."