It's the transporting of animals to the slaughterhouse that I find upsetting. As a young animal to be suddenly dragged away from the only life you've ever known, crammed on a stinky lorry and driven god knows how many hours - the noise and the smell must be terrifying. Last time we were on Skye (obviously loads of sheep there) on our way home in the outskirts of Glasgow we saw one of the Skye transporters, packed full of lambs, pulled up to rest in a lay-by. I think we'd travelled about 4 hours by then.