My friend's phobia

My friend got some problems with dogs . Once he was walking in the forest near moscow , a dog attacked him cause it thought that he want to take his food . But a men from the nearby village killed the dog before it'll kill him . After that he got a dog phobia , but once he went to the terapist and she was talking th him why he afraid dogs and she showed him that dogs aren't bad . At next time she took a dog and he understood that they are nice . Next day he wasn't afraid of dogs . Now he got a dog- a small spitz