John: I don't think any of us could go along with this if we didn't have pretty good backing from home, rally. My wife's attitude toward this has been the same as it has been all along through all my flying, which is, it's what I want to do, she's behind it, and the kids are too, 100%. Honestly, Annie said I've been out of this world a long time, might as well go on out there. Reporter: Uh, Mr. Shepard. Same Question. What does your wife say about all this? Alan [looking like a deer caught in the headlights]: [clears throat] Uh, ahem, I have no problems at home. My family's in complete agreement. Reporter: Oh, heh. Hmm. Of the medical tests, which one would you say you liked the least? John: Well, I'll say this. If you can figure out how many openings there are on the human body and how far you can go into each of them, you can probably figure out which would be the toughest one for you.