Actually, animals in slaughter houses are killed pretty humanely. At least that's what I understand, or prefer to believe. They're not "bled out" nor made to suffer.
Old Man, I knew enough not to watch the video and I really hate wild hogs. I am glad, glad I tell you, to see them put down. But this one's on you -- not fair to pick a fight here. What the OP was laughing at was me and my girlfriend whom I hide sharp, pointy, objects from. I'm not kidding... I put margarine on her bread so she doesn't even have an excuse to handle a butter knife.