All the above advice is right and proper, you have to know the airplane and the rules. However, that is just part of the job, what you really need to understand is that the majority of you work will be dealing with the non-flying side of things, and your #1 job it service to the person who bought an expensive airplane for his/her convienience. You can plan the heck out of a flight, work the fuel, W&B, fight your way through storms, hold a wing on with one hand while landing with the other, and if the car isn't there at the bottom of the steps, the owner will look at you like you are a brithering idiot. Also, try to never use the word "No" to the owner. Instead explain the problem and offer options, but don't be bullied into doing something stupid. Sounds easy right? Welcome to corporate, there are a lot of great people and opportunities in our world.