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.