During a ride in a taxicab, the passenger touched the driver on the shoulder to ask him a question.
Upon feeling the touch, the cab driver flinched, screamed, then went into a panic and almost wrecked the cab. Finally, the driver got control and pulled over to the side of road.
Still shaking, he turned to his passenger and apologized. He said, "Sorry about that. This is my first day as a cab driver. For the past 20 years I have driven a hearse".