Kinda sorta.
One day a bunch of kids started getting sick and there was an awful stinch in the air.
Come to find out a pipe had busted and it was close to an air-duct so it spread throughout the whole school.
I got a horrible migraine from it and collapsed twice.
Of course with others it was worse, two kids were put in the hospital for it.
After I got outside, I felt so much better.