To continue with the emotional aspect:
18/ Having to accept that you will hardly ever be there for your family. For example, working on Christmas Day, when other fathers/mothers are at home with their families.
19/ Having to listen every night to the same old moans from your partner. These include "Oh it would be nice to have a dinner party in September, we'll have it round here! - Oh, what do you mean you haven't got your roster yet? Oh what do you mean that you might not even be at this airport then?", "I wish that we were more like other couples", "I wish our relationship has the same priority as your job" etc...
And then it comes down to the dreaded: "Oh, I'm going off for a meal with Jim - you remember Jim right? He's the guy that looks like a cross between a brick house and Brad Pitt. You know I always fancied Brad Pitt didn't you?".