Here's a video I took of our very tired puppy Rio on the couch last night with my parents, he had just come in from the snow, had a bath and was falling asleep. Mum and Dad said he does this alot if they try to move him or speak to him like the way they are in the video.
As you can see we all thought it was hilarious I know of a talkative dog that barks in my family but have never seen one like this groaning in response
Ah, Cavies wonderful and yet mysterious creatures aren't they ?
Here's the link