Two men walking their dogs want to go into a shop, but there is a sign outside which says "NO PETS ALLOWED". They wonder what to do, then the first man says "Watch me". He walks into the shop with his golden retriever and is stopped. "No pets allowed, mister." "It's my guidedog," the first man replies, and he is allowed in.

So the second man tries the same thing. "No pets allowed, mister," says the shop assistant. "It's my guidedog," the second man replies. And the shop assistant disbelievingly says "What, a Chi Hua Hua?"

And the man goes, "You mean they gave me a Chi Hua Hua?!!"