Guys and girls, when meeting the 'in laws', what careers would be intimidating?

Ive just watched Meet the Parents (great film)

And it's funny how Greg was already intimidated by Jack (the father in law) when he thought he was a florist, but then once he found out he was part of the CIA, you could tell he was even more anxious being around him..

It made me wonder, if you were to meet your in laws, what kind of careers would most likely intimidate you the most?

(If any lol)