You are a medical student doing a clinical observership with a cardiologist, Dr.Pepper. He is very knowledgeable, caring of patients, and enthusiastic to teach you. One of his patients, Mr.Jones, presents to the clinic with moderate chest pain and wonders whether it is a warning sign of heart failure. After careful clinical examination, Dr.Pepper reassures Mr.Jones that there is nothing to worry about, saying, “Your boss,Mr.Smith, came in last week with similar symptoms and it turned out to be merely acid reflux”.