I have no credit for the source, or if it's just made up. I got it from my brother.

..............................................................................................

A very self-important college freshman at a recent USC football game,
took it upon himself to explain to a senior citizen sitting next to
him why it was impossible for the older generation to understand his own.

"You grew up in a different, actually almost primitive, world,"
the student said loud enough for the whole crowd to hear. "We young
people today grew up with television, jet planes, space travel, man
walking 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 for breath in the student's litany, the
"wizened" one said, "You're right, Son. We didn't have those things
when we were young...so we invented them.. you arrogant little
shithead!! Now.... what are you doing for the next generation??"