Mike the Headless Chicken
en.wikipedia.org
en.wikipedia.org
Not a very generous multiplier, but then again, the actuarial tables for a headless chicken wouldn't be all that favorable.
That's the feeling of learning a new incredible science fact!
Also, if you feel that you died a little inside then, as a quote attributed to /b/ goes, "That was the weak part. Now you're stronger."
Also worth noting, Frozen Dead Guy Days are pretty awesome too: