It really doesn't matter to a pig when it dies, it's the life it's had, albeit short, that matters and a well loved pig goes more happily to slaughter, without fear or hesitation, than one who hasn't had human contact and belly rubs etc. and that is so important to me.
I have a sleepness night and can't manage as much as a glass of water when the day comes but feel a great wave of relief when I know they've been done. AND every time I take animals to slaughter I swear I'll become a vegan

. I always aim to get my animals to the abattoir really early, usually before they open so that they will be the first ones through.