Attack of the Clingon Dog!

I took my dog to the vet the other day.
I said, "Doctor, my dog has grown a large letter "K" on his back and seems to have six eyes."
"That's strange said the vet, I wonder where the other three eyes have gone."
"The other three?" I said.
"Yes, well, he is an keyenine!"

Boom Boom!!

Or how about...

I took my dog to the vet the other day.
I said to the vet, "excuse me but my dog seems to have six eyes."
"Thats great!" said the vet.
"Is it a medical marvel?" I asked excitedly.
"No," said the vet, "my husband is an optician!"

Boom Boom?

Anyone do better?