A taxi passenger tapped the driver on the shoulder to ask him a question. The driver-Khan screamed, lost control of the car, nearly hit a bus, went up on the footpath, and stopped centimeters from a shop window.
For a second everything went quiet in the cab, then the driver-Khan 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 funeral van for the last 23 years."