 He was told he could no longer stand for long periods of time, work more than six hours a day, or lift anything over 10 pounds.As he was deciding what to do next for a living, he said, "I recalled that during my years of hospital practice, I would receive at least five phone inquiries a week asking if any veterinarian in the Portland area made house calls," he stated in a 1975 interview.He made the decision to establish a mobile practice.