You know I've always eaten meat (and I've no plans to stop) and I've always known that there is a specific need to farm meat (specifically because there are far too many people on the earth to rely upon self sustaining wild stocks). That said I've always felt that one has to cross a mental barrier, or point in ones mind or close some part down in order to go through the process of raising an animal specifically for the slaughterhouse. I think you have to cross an even bigger barrier to do so when you do the slaughter yourself. I also think its something most very young people see and are oft forced to cross; whilst those in the hotter blooded late teens to young adults and well into some of the middleages don't think about - and then hits them in their elder years again. Also interesting point: We accept animals (like cats) into our society and even accord them a place within or close social structure of the family. They are fed, housed, cared for, vet bills paid for and more - all for very little actual "work" return (though they do keep the mice out!) However upon a certain point they become worthless to us. If medical bills become to high or if they die their status is often left down to their most base component (ergo they are meat and bone). Interestingly we go to great lengths to prove that this cold, calculated view is not one we hold for humans (our own species). We go to extra ordinary lengths to prove this even well after they are departed and gone to the grave. Were anyone of us to take a family member, dead through totally natural causes, to make them into a helicopter or heck even to have them stuffed by a taxidermist for anything other than 100% science we would be regarded as possibly insane and at the very least dangerous (or maybe I got those two mixed around).