Barking When They Are Happy Dogs can also bark when they are feeling satisfied or happy too. For instance, the dog might bark happily when their favorite human arrives home from work. The dogs might also bark when you bring them out for a walk, or when you give them their favorite treat! Note that, even when they are barking happily, you should also regard this as a trigger that needs some rectification as the barks can be too noisy at times. You might even want to order a bark stopper for dogs.