I've managed to inhale at least 1/3 of a cubic ton of chalk today. Wednesdays are when I teach almost every period. I try not to wear dark clothes to reduce the embarrassment of being covered in chalk, but on days when I oversleep by an hour I find I'm not thinking clearly enough to color coordinate with the day's activities. So more than once today I've heard "Miss Allison, you're covered in chalk." 

"Your arm, Miss Allison. It's your entire arm."

"Your butt, Miss Allison."

"Wipe your nose right here, Miss Allison. There's chalk all over your nose."