Hitting and stabbing and generally breaking things may have been a genetic trait in Walter's case. Not only were his father and grandfather surgeons, but his aunt was a famous mountaineer. He was also very distantly related to Lizzie Borden. In my mind the crowbar-wielding scientist Gordon Freeman is a descendant of Walter's, because he seems to carry on the family tradition of getting an advanced degree and then hitting things really hard.
Besides the fact that I find the idea of talk therapy with Walter Freeman inherently hilarious, the story of the woman in panel two has its own punchline: she liked his exercise therapy idea so much that she went on to become a champion weightlifter.