A heart patient visits a cardiologist, who examined him and said, "Do not worry, you will be alright after an operation."

The patient inquired about doctor's experiences. The doctor said, "More than 30 years." The patient then asked about the rate of failure, the doctor said, "Only one in entire practices!"

The patient then asked, "How many operation have you performed, so far." The doctor said, "That was my first operation and yours is the second!"