Many times an animal psychologist or a good trainer can help a troubled dog, but not always. Take the case of Sue Sullivan and her shepherd-mix, Sierra. The dog had to be muzzled for all veterinarian visits, and had at least twice tried to attack members of Sullivan's family. They took her to a behaviorist in Detroit, Michigan, who didn't seem to think there was much hope for Sierra. In the end, Sullivan had to put her dog to sleep.
Most stories have happier endings.
Take Rusty, the dog with separation anxiety problems. Shari Wexler was happy with the results she received. And for most owners, their pets are well worth the effort.