Picture They should install beer bongs in the ceiling to drop down in case of emergency, like the oxygen masks on an airplane.
Picture "In case of a plane crash, brace yourself like a ballerina and make sure to follow Willy Wonka out the emergency exit."
Picture "The instructor pilot was having an affair with a female student. Her husband found out, and calmly reacted by destroying his airplane with a chainsaw." Alternate theory: a propeller did it. That's why the spacing is so even.