Last night I was playing tennis, a new favorite hobby of mine, and managed to BADLY pull my right calf muscle.  And when I say "BADLY" I mean "I’m on crutches now after a visit to the emergency room."  I should be off of them in a few days, but let me tell you – it hasn’t even been 24 hours yet and I still technically have the full function of my legs, but its made me realize how much people who have to live with crutches go through.  Suddenly every doorway and hallway seems half the size it was before and I try to figure out how to do things without either bending over or moving too much.