Movement causes friction. Always.  —Jon Maxwell. I walked into the physical therapist’s office after four weeks of traveling, four weeks of dallying, four weeks of tallying up exactly ZERO of my normal range of motion exercises that I had been so diligent about doing multiple times a day before I left.  And I was stiff. To put it mildly.  More accurately, I was the Tin Man in desperate need of oil—ANY OIL—and a strong set of hands to loosen my knee’s unwillingness to move or to bend my neglect away. I wanted someone else to take the uncomfortable heat that friction from new movement had [...]