Do people change jobs?

Dane asked us this last night after dinner.

I started to launch into my own spiel about having been a college teacher and a pre-school teacher, when Aubrey says, "Oh yeah, Mom, you were a tour guide in Alaska."

And Dane says, "Oh yeah, Dad, you used to make pizzas and drive a train."

Apparently that's how 'Pizza Time delivery guy' and 'engineer' translates to the eight and under crowd.