A taxi passenger tapped the driver on the shoulder to ask a question. The driver screamed, lost control of the car, nearly hit a bus, swerved onto the footpath, and stopped just centimetres from a shop window.
The driver said, "Look mate, don't ever do that again. You scared the daylights out of me!"
The passenger apologized, "I didn't realize 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 25 years."