One of my favourite lines is at the end of DH Hermione kisses Ron. Harry shouts back
"Oi. There's a war going on here!!!"
Another one is in another book where Ginny, Harry are sitting together. Ginny is reading the paper and she says
"Three Dementor attacks in one week and all Romilda Vane can do is ask if it's true that you've got a Hippogriff Tattooed accross your chest."
Harry asks "what did you tell her?"
I told her that it's a Hungarian Horntail, much more macho"
What were your favourite lines....?
(Any HP books)