Dead Rottweiler
A man walks into a bar and asks, "Who is the owner of that bloody rottweiler chained up outside?"
"Fang is my Dog" says a biker says, standing up. "What about it?"
"Your dog is dead dude", says the man, "My chihuahua just killed him..."
"What are you talkin' about?!" the biker says, disbelievingly. "How could a little runt like a chihuahua kill Fang?"
"Well, it appears my dog got stuck halfway down fang's throat!"