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.