This is a test of commonsense. Complete the next sentence:

How to tell if your dog is depressed
Think about whether your dog has become withdrawn.
Most healthy, happy dogs are highly sociable creatures. If your dog is not greeting you as excitedly when you come home-less of a tail wag, less energy and movement-or loses interest in activities they once enjoyed, they may be depressed.
Instead of running to the door to greet visitors, a depressed dog may slink away and find an out-of-the-way corner to curl up and go to sleep. Be particularly concerned if your dog hides from you.