Luck? —Nah, you just have to know which roofs you can fall off of.

[ There's a bit of shrewdness there, as if he's in on a little secret, but it comes and goes. Despite majoring in idiocy 90% of the time, he's not a complete bozo— it's the reason he hasn't buckled, all things considered. ]

If push comes to shove, I have a doctor in the family, too! It's not actually as great as it sounds, though, let me tell you.