They'd be surprised.

I’m 547 years old. I know you’ll find this hard to believe. But I was born in 1460. My real name is Ponce de Leon. I was an explorer. And I found the Fountain of Youth, for which I was searching. And I’ve bottled up the water, which I drink daily. So for the time-being I’m passing as Jim Broede. I tell people I’m only 72, and they tell me I look younger than that. Boy, if only they knew I was 547. They'd be surprised. --Jim Broede