Okay, so this dude in China got drunk, went to a zoo, went up to a Panda and tried to give it a hug.  The panda was all like, "Whoa there, I don't even know your name," and it bit the guy. 

And you know what the guy did?  He bit back.

I don't know about you, but if a large animal just got done sinking its teeth into my flesh, I don't think I'd be sticking around to make it more angry. 

He recalled the biting incident like this, "I took the opportunity to bite the panda's back, but its fur was too thick," Zhang said.

Man, that must have been a surprise, because my experience shows that all the times in the past when people have tried to bite pandas, they've been successful. 

Oh wait.  No one has ever tried biting pandas before.  I don't know why, oh wait, I know why - because it's insane!