Here's a dog facing a quandary that none of us would welcome. The skunk is eating his food. By rights, he should attack the skunk and drive it away, but it surely knows that the skunk will respond by spraying him with its foul odor. He's taken the wise route and decided to sit back and let the skunk finish its meal instead, in the hope that it will leave something for him.
Not all dogs are as clever as this one; in some parts of America, curious dogs get sprayed by skunks so often that manufacturers of pet products have had to create special shampoos to help get rid of the stench! Look how angry the canine is about all of this, though. You can just see in its eyes that it's already planning its revenge.