Stranded at the airport? Don’t forget Rule 240

"A few years ago, at Chicago's O'Hare Airport, I noticed something strange on the departure boards. American Airlines had three flights scheduled that afternoon from ORD to Boston, and all were apparently operating on time. United, on the other hand, had three flights scheduled from ORD to Boston, but none were operating on time. In fact, all three United flights showed 'canceled.'

I smelled a rat. I went to the United counter and asked the reason for the cancellations. 'Weather.'"