With one of the most powerful noses in the animal kingdom, it stands to reason that dogs would find some smells unbearable. If you have a dog companion, knowing which scents he hates could help you create a pleasing environment for both of you. There are smells that you may find pleasant that could cause your dog to avoid them altogether. Some are dangerous for your pet to inhale over a long period. These are good reasons to watch this video to learn which smells your dog merely hates and which could cause harm.