For a few moments everything was silent in the cab, and then the still shaking driver said, "I'm sorry but you scared the daylights out of me."
The frightened passenger apologized to the driver and said he didn't realize a mere tap on the shoulder could frighten him 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 23 years.