Laughter is indeed the best medicine. {hug} Part of that education was probably some new routines to follow (a close friend also ended up in the hospital a few months back, similar situation but not as many bypasses, and he now walks daily and eats better and relaxes more... he's pulled through). Remember that is a pacemaker, not a peacemaker, so you don't have to take it apart to clean it after drilling your students. But your heartbeat isn't the only thing which needs pacing. Take it easier! Carolly