When Loki gets grumpy, Yun's solution is to play with him. Sometimes he'll take the dog blanket and throw it over Loki. Some dog experts use the time it takes a dog to get himself out from under a blanket as a measure of dog intelligence. I'm not sure if I buy that theory. What if the dog just doesn't care? Well, anyways, this works pretty effectively in getting Loki out of his funky moods.
Here's Loki looking sad that he's under the blanket.
One ear up and one ear down.
Let's play again! Yun throws the blanket on him with the other side up.