[freevideoandoicsI]

Snarling and growling are not the only signs of an imminent "attack." Dogs use body language and a variety of warning signs to let someone know the dog is going to make a move - the problem is that humans don't recognize these signs, so they think the dog did something "without warning". For some reason, humans don't understand that dogs have their own "language" that doesn't exactly translate to them saying outloud, "Hey, knock it off or I'll bite you!"