If this doesn't make you feel old (as a middle aged guy, at least... so not REALLY old, I guess, but at that point in your life where stuff starts to hurt and you can't recover from a holiday weekend BBQ the same way anymore...) I don't know what will.

A few years ago I was teaching some students about the differences in the T-38 C's electrical system when we were updating the A models and I said "and I think there's a flux capacitor in there somewhere".

Blank stares.

I ask "You guys know what a flux capacitor is, right?"

One kid raises his hand and says "Sir, its a term from physics when..."

I stopped him right there. Then I cried.