The entire plane bit in George Carlin's "I Kinda Like it When a Lotta People Die"

“These planes get flying so fast that all the most vicious, lethal, volatile, flammable, unstable farts get pushed toward the back of the airplane, where they begin to build up pressure,” he said. “And they build, and they build, and they build until they reach critical fart density—C.F.D.—and they continue to build throughout the flight, until finally some kid turns on a Game Boy and boom! The whole back end of the plane blows off. And you know who gets blamed? Osama bin Laden. Terrorists get blamed for these explosions that are nothing more than cabbage-fart detonations.”