At a college football game, a student challenged a senior citizen sitting next to him, saying it was impossible for their generation to understand his. "You grew up in a different world," the student said loud enough for the whole crowd to hear. "Today we have television, cell phones, jet planes, space travel, and man has walked on the Moon. Our spaceships have visited Mars, we even have nuclear energy, electric and hydrogen cars, computers with light-speed processing and, uh. . . ."

Taking advantage of a pause in the student's litany, the geezer said, "You're right. We didn't have those things when we were young; so we invented them and gave them to you to use. Now what are you doing for the next generation?"