Fear of Flying.

For all intents and purposes, Dustin Pedroia seems fearless when he plays baseball. He's not afraid of anything or anyone on the field; be it rolling his wrist diving for a groundball and ending his career or disturbingly overweight pitchers in New York who might not be able to curb their hunger until the end of the inning and decide to snack on him in the meantime. But it turns out that off the field he's not that brave. He is afraid of going 500 miles per hour and falling 30,000 feet. In short, he's afraid to fly.

Also, JD Drew has his pilot's license. So that's something interesting about him.