Milliseconds of luck is also why I don't have any kids.
Yes, it's the dumb people that cause these problems. These are the same people that stand up and block up the aisle in the plane as soon as it stops at the terminal.
As a frequent flyer people like this confuse me... Do they really not know that they are going to have to pay additional fees when they get to the airport? Seems almost universal now that if your bag is over 50lbs you are going to be paying out the nose... why not just ship it?