I know the crew so well, so I forget I'm being filmed. It's like cooking with a friend in the kitchen - you're talking, as you do, and maybe you're telling her about this wonderful way to prepare lamb chops - it's more natural, more honest.
But if you know that something has been really vicious, you don't read it, you don't let it into your head. What's damaging is when sentences go through your head and you burn with the injustice of it.
And, in a funny way, each death is different and you mourn each death differently and each death brings back the death you mourned earlier and you get into a bit of a pile-up.