My son came home from school the other day and told me that an NFL (national football league) player was his substitute gym teacher.
"That's pretty awesome," I said. "It sound like he was probably way cooler than your regular gym teacher!"
"He was," said my son. "And I even got his autograph!" He pulled out a piece of notebook paper and showed me.
"That's special," I said. "Hold on to it."
"Is it going to be worth a lot of money?" he asked.
"It all depends. If the person becomes really famous, like Babe Ruth, it could be worth a lot of money."
He thought about that. "What if I get really famous?" he asked. "Will my autograph be worth a lot of money?"
I shrugged. "Possibly."
Then he grinned. "I know what I'm going to do."
"What are you going to do, Bubba?"
"I'm going to sign a bunch of things and give them to my kids. And then I'll get famous, and they can sell my autograph and make a lot of money!"
(That's what I call thinking ahead!)