The boss called one of his employees into the office.
"Rob," he said, "you've been with the company for a year. You started off in the post room, one week later you were promoted to a sales position, and one month after that you were promoted to district manager of the sales department. Just four short months later, you were promoted to vice-chairman.
Now it's time for me to retire, and I want you to take over the company. What do you say to that?"
"Thanks," said the employee.
"Thanks?" the boss replied. "Is that all you can say?"