The ultimate caring teacher - and always a smile. I first worked with Mark in 1986 as a brand new (and clueless!) CPI rep. As I joined him for the first AICD implant at the University of Michigan, I watched what became a model for me of interaction with OR staff. He had a say of teaching others with a positive impact. How many Doctors and nurses and folks like me did he teach? How many lives did they go on to help save? and as if you were with himhow many smiles did that generate? Smile, Mark! Keith Gallagher