What are possible reasons that dogs freak out when their master is not there

What is the message of your dog barking? Why you follow around the house relentlessly, while you get ready for work, why not chew the furniture while you're away? Maybe you're a loyal friend has a hard time coping with the absence your home. In other words, the separation anxiety.
Dogs tend to have problems with the separation of behavior to show the first signs that owners can go with you. You may not think you have not done anything to show you go anywhere. But to your dog, every little part of your routine, no matter how small, the signal of departure. This can be as obvious as setting up your clock or as dark as washing a dish in the sink. In the exercise of your dog, your behavior shows you leave.
Whatever your dog reacts to stimulation began, the results can be both frustrating and disheartening. The dog starts to panic, you feel bad when you walk, and when you return home you will find that your dog has been through stress of urinating or defecating in the house, chewing one of your slippers or worse.
Separation anxiety in dogs is not uncommon. Just like puppies develop strong bonds with their mothers, dogs can develop attachments to their owners. There is a reason to call "best friend" and "loyalty." Most dogs would die in defense of their owners. It is not surprising that some dogs feel lost when their owner is not there. The good news is that separation anxiety disorder treated with behavior modification, or in extreme cases, medication.
As traumatic as possible to go for a dog owner to see the dog, this type of emergency, domestic dogs, for the sake of their own to get used to being away from their owners at times. It is a responsibility for the dog owner to train. This is especially true for dogs to escape from the destruction of property belonging to persons other than owners of dogs or dogs howl, bark or cry when the owner tend removed.
If your dog gets stressed when you try to try these ideas to help you use your absences.
Show your dog how to find new friends. Ignore your dog for a while is healthy for both of you. Being together at home, but everyone did what they want to take your dog to be independent. On walks or parks, the promotion of the dog, where appropriate, with other people and dogs. Help him expand his horizons.
Help your dog that the house was a place he loves. Make your dog a place at home or in your garden a comfortable, clean and cool. If it is a part of the dog, it will become harder if you want to install it through If you can keep your dog tied up in your garden, make sure you have enough work around. But even aware of fences, tables or can be anything the dog jumps or over the line and could get snagged.
If your dog is very appropriate or displays extreme behavior, you may need to work together piece by piece, stay away for a short period at first. It will gradually get used to the idea that, yes, you will leave, but you also return.