The Taxi Driver
A passenger in a taxi leaned over to ask the driver a question and tapped him on the shoulder. The driver screamed, lost control of the cab, nearly hit a bus, drove up over a curb, and stopped just inches from a large plate glass window.
For a few minutes everything was silent in the cab, and then still shaking the driver said, "I'm sorry, but you scared the daylights out of me."
The frightened passenger apologized to the driver and said, "I had no idea a mere tap on the shoulder could frighten you so much."
The driver replied, "No, no, I'm sorry. It's entirely my fault. Today is my first day driving a cab... I've been driving a hearse for the last 25 years."