Honey Badgers...
...are awesome..!!
http://en.wikipedia.org/wiki/Ratel
"In one case, shown on an episode of Animal Planet, an old female honey badger that was nearly toothless and had one blind eye was attacked by a leopard. It took the leopard about one hour to kill the honey badger."
Don't mess with honey badgers, they'll go fer yer nut-sac first, and maybe ask questions later...