On the first day of college, the Dean addressed the students, pointing out
some of the rules. "The female dormitory will be off-limits for all male
students, and the male dormitory to the female students. Anybody caught
breaking this rule will be fined $20 the first time."
He continued, "Anybody caught breaking this rule the second time will be
fined $60. Being caught a third time will incur a hefty fine of $180. Are
there any questions?"
At this, a male student in the crowd inquires, "How much for a season pass?"
