Dogs

Can anyone tell me why, The dogs must always bark? Is there something out there? Are they just afraid of the dark? Is it a burglar or a boogey man, Or maybe a haunting ghost? Why must they do it only, When I need sleep the most? The barking can be disturbing. But worse is when they growl, Its even more maddening, When they set up an awful howl. Is something really wrong? Is there something that their after, Or perhaps some cruel joke? And thats the sound of their laughter. Am I the brunt of it all? Or are they just answering, Some lonesome coyote's call.