1. Gourmet meals in economy class.  The few times I've flown first class, I'm always amazed at the difference in meal quality.  It's like being treated like a king while the peasants all eat their moldy bread and water.  Air France served a nice big meal in economy class, equal to a first class meal.  Quite a surprise.
2. Meals on short flights.  My connecting flight from Paris to Hannover was about an hour and a half long, but we still got a little meal.  Remember when they used to do that in the U.S.?  I don't.
3. Free booze.  I'm not a big drinker, and I only had one beer on the flight.  But it's the principle.  Getting something for free is so rare, especially from an airline.  And even if Air France simply factored that into the price of the ticket, it worked for me.  I'm easily tricked.
4. Headphones, earplugs, and a sleeping mask, for free.  Brilliant, seeing that it was an overnight flight.
5. Seatback entertainment system.  I've seen this on other airlines, and it's such a great idea.  Instead of waiting for that 4-inch screen to noisily slide down from the ceiling, you can watch whatever you want on the back of the seat in front of you.  Movies, TV, a camera on the nose of the plane.  There were even games, which helped fill some of those 7 or 8 hours in the air.

1. Everyone is treated like a criminal.  I appreciate security, but come on:  Metal detectors, explosives detectors, death threats if we carry someone else's bag?  Honestly, why do we have to take our shoes off?  Because of that shoe bomber guy?  If your security screening process can't detect explosives in a person's shoe while they're wearing it, you've got a bigger problem than shoe bombs.
2. Nickle and diming.  I've already come to the conclusion that paying $5 for a meal on a plane actually isn't a bad deal, but regardless, it should just be included in the ticket price.  Same with the $5 headphones, the $5 beers, and the newly-established checked-baggage fee.  We're already paying hundreds if not thousands of dollars for the stupid ticket, why not include all those stupid little fees? *
3. Everyone is treated like an inconvenience.  Sometimes it seems like airport employees and flight attendants are saying, "Hey listen, we're already gonna fly this plane from here to there, so I guess you could bum a ride with us.  Just stay out of the way and don't expect anything other than a miniature can of soda.  We're doing you a favor."

Mechanical Engineering - The study and application of position, velocity, and acceleration to determine the forces and moments acting on an object.

Christianity - The religion that emphasizes personal salvation through the sacrifice of Jesus Christ as a means of accessing and drawing closer to the God of heaven and earth.

Rocket Science - The study of objects in flight assisted by an active propelling force.

1. "You must like trains."  Wrong.  People mistakenly group engineers with trains because train conductors are often called engineers.  That's because they operate engines, which, oddly enough, is almost completely unrelated to engineering.  Sure, engines are designed by engineers, and the entire railroad industry was essentially created by engineers.  But just because I have a degree in engineering doesn't mean I understand or am interested in how trains work.
2. "You must like cars."  Wrong.  I hate cars.  I believe what my dad always said:  "A car is the worst investment you'll ever make."  But aside from the financial aspect, there's the mechanic aspect.  I'm a mechanical engineer, so people assume mechanical → mechanic → cars → you like cars.  Again, mechanical engineering has almost nothing to do with cars aside from the fact that the automotive industry was created by engineers.  But just because I have a degree in mechanical engineering doesn't mean I can fix your transmission.