Source: The Absolute Best GIFs
Stashed in: Zombies!, Hugs!, gifs, Montage, deviantART
This points to big trouble.
It's more horrific if several fingers have been zombified: http://meiio.deviantart.com/art/Zombie-fingers-303868072
More Zombie Fingers:
That last one looks like the Zombie wants a hug.
Ryan Gosling sitting in restaurant gif
Weird Al Shredding gif
THE famous Tiger Attack video! So You Think You're Safe on That Elephant.....