If you think your dog has sensed evil, it’s important to know what to do. It’s also important to understand why your dog might have sensed evil and how to prevent this from happening again. So let's look at some of the options available to you when you suspect that your dog has sensed evil in your home. Some people say that their dog will bark at or avoid people who they sense are bad news. Others say that their dog will not behave normally around these individuals. A few people even claim that their dog will growl or lunge at them. These behaviors may seem extreme, but there are a number of reasons why your dog could be behaving strangely. Your dog may have been exposed to a strange smell, such as smoke, gas, or ammonia. The person who smells strongly of alcohol may be someone who your dog has never met before. A stranger with an unusual scent could be someone who your dog fears. Someone who smells bad may be carrying a disease such as tuberculosis or hepatitis. It could be a new puppy or kitten that your dog has never seen before. It could be a baby or small child who your dog has never encountered. In all cases, it’s best to contact your vet for advice on what to do next.