Every. Single. Time. I do also get emotional whenever Cedric Diggory, Sirius Black and Dumbledore die in previous years. But this book - it kills me every time. First there's Snape. I start crying the moment his Patronus shows up as a doe. Then, when he dies and hands his memories over to Harry and we relive all of the years Snape loved Lily, the grief he felt when he lost her,... "Always." And then Lupin and Tonks! Fred Weasley! Right up to the very end when Harry scolds his son - Albus Severus. Oh man - I'm pretty much crying as I write this.