If your dog exhibits behavior problems, she is in good company. A recent study of over 13,000 pet dogs in Finland found that nearly three-quarters of dogs have a behavioral issue. The study almost certainly underrepresents the percentage of dogs with a behavior problem because this study focused on just seven of them: noise sensitivity, fearfulness, compulsion, fear of surfaces or heights, inattention/impulsivity, separation related behavior and aggression. It did not investigate destructive chewing, jumping up, digging, counter surfing and many other behaviors that are common and considered problematic to the people in their lives. Additionally, because the data came from guardian surveys, assessing its reliability is challenging. It is notoriously difficult to collect accurate information from surveys.
via Whisker Therapy