I actually did some work for American Airlines at their training facility in Irving. Flight Attendant training included, of all things, grooming. The most unique of which (to me) was "Nail Day", a random nail check day at the training facility to inspect cuticles. Bad nails, one demerit... and after a certain amount of demerits, you were drummed out of the training and sent home, your dreams of being a flight attendant dashed for good.