1.    As new students at a university in Boston, many of us were unfamiliar with the campus and consequently late for class. One professor, however, was particularly intolerant of tardiness, making it clear that no excuse would be acceptable. So when a student stumbled into his class one morning late, we expected the worst.

　　Obvious upset, the professor demanded the reason for the student's tardiness. " I was waiting on line to buy your new textbook, " she replied nervously. Gazing out at the rest of the class, the professor asked, "Well, why weren't the rest of you late?"