Impact of job change - short story

A taxi passenger tapped the driver on the shoulder to ask him a question. The driver screamed, lost control of the car, nearly hit a bus, went up on the footpath, and stopped centimetres from a shop window. For a second everything went quiet in the cab, then the driver said: "Look mate, don't ever do that again. You scared the daylights out of me!". The passenger apologized and said, "I didn't realize that a little tap would scare you so much." The driver replied, "Sorry, it's not really your fault. Today is my first day as a cab driver - I've been driving a van carrying dead Bodies for the last 25 years.......u can imagine what went into my mind when u touched my back!! :)