Myrddin had gotten a part time job at the Post Office and the supervisor there had been warned that he was somewhat of a dullard, but the supervisor took a liking to him and agreed to let Myrddin help him. If nothing else, he would be an extra set of hands.
The supervisor gives Myrddin the job of sorting, and much to everyone's surprise, Myrddin separated the letters so fast that his motions were literally a blur.
Extremely pleased by this, the supervisor approached Myrddin at the end of the day. "I just want you to know," he said, "that we're all very proud of you. You're one of the fastest workers we have ever had."
"Thank you," said Myrddin, "and tomorrow I'll try to do even better."
"Better?" the supervisor asked with astonishment. "How can you possibly do better?"
Myrddin replied, "Tomorrow I am going to read the addresses."