Often when I say what I do for a living I find that people are keen to hear that 'it is not that great after all' i.e. long hours, never get to stay at the places we go. It is all justification, I guess it makes people feel better about their boring but 'sensible' jobs. After all, they get Chrismas off, and good benefits.
I can't think of anything worse than looking back and knowing I failed to do what I really wanted to do. It would be a life full of regrets.