Nit-pick: pacemakers don't shock you, internal cardioverter defibrillators do. http://www.nlm.nih.gov/medlineplus/pacemakersandimplantabledefibrillators.html h

Nit-pick: pacemakers don't shock you, internal cardioverter defibrillators do. http://www.nlm.nih.gov/medlineplus/pacemakersandimplantabledefibrillators.html http://www.nlm.nih.gov/medlineplus/pacemakersandimplantabled...