... as our most common inorganic compound.  We can be completely different people, but our fibias are the same.  When I'm feeling far away from my friends, I'll prod them in the shoulder and say, acromial, deltoid.   Or the elbow, antecubital.  The knee, patellar.  Or, if I'm feeling especially playful or daring, a quick jab to the chest or the hip--thoracic, coxal, respectively. Rowing is okay.  I ...