Senior Citizen

A college student challenged a senior citizen, saying it was
impossible for their generation to understand his.

"You grew up in a different world,"the student said. "Today we have
television, jet planes, space travel, nuclear energy, computers..."

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! What the heck are you doing for the next generation??"