A Postman calls at a house to deliver a parcel.
He knocks on the door and waits.
Shortly, the door is opened by a dog.
The Postman looks astonished but, seeing nobody else there, says to the dog
"Good morning I have a parcel for this address".
"Oh good" replies the dog. "Could you please put it on the floor inside the door?"
The Postman does as the dog asks, but is still a little shocked by the whole thing.
So, to fill in the embarrassing pause, he says "Wow, does your owner know you answer the door then?"
"Yes" comes the reply.
" Amazing. And does he know you can talk?"
"You must be joking" replies the dog. "If he knew that, he'd make me answer the phone as well!"