18. Nothing is perfect
The computer in Dan’s car is helping him reach his hotel.
D： OK， computer， how do we get there？
C： go one block and take a left.
D： that looks easy. （He turns right.）
C： Left！ I said "left"， you idiot！"
D： Sorry！ Wow， you don’t have to get so angry.
C： I’m sorry. I guess I’m just having a bad day.
D： a bad day？ You’re a computer！ How can you have a bad day？
C： Well， I think I’ve got a virus.
D： Ha！ And I thought computers could never be wrong.