I said I'd leave it at that earlier, but I simply can't resist responding to your latest strange notion.
When one starts the slaughtering process on an animal, it is by definition still alive! The animal's back legs are trussed and it is raised aloft, giving the slaughterman access to its throat. Clearly, there is a short period of time during which the panicking animal thrashes about in an attempt to escape. That's when it "kicks the bucket," which is - as already explained - a beam.