I actually did see an underweight girl at the store yesterday.  Think its the only time ive ever seen that in my life.  She was looking legit death thin, was really weird.  Also had on weird giant square drawn on eyebrows.  Creepy.  Dunno if some sort of medical problem, like cancer, or just extreme anorexia.  She was in the grocery store though, so i guess she planned on eating something.