Ziplining? Swimming with crocodiles? Wing walking? Volcano-boarding? Extreme zorbing? If any of these things sound appealing to you, you might have a Type-T personality. That’s what Temple University’s professor of educational psychology, Frank Farley, uses to describe thrill-seekers, or those who are on the hunt for the next intense adventure. "It's the excitement,” he says. "It makes things interesting, keeps you going. When this life is over, you want to be able to look back and say, 'I li...