"Come to school unless your barfing, bleeding, or burning."

I have a rule in my classroom.  It is to come to school unless you're barfing, bleeding, or burning.  Al had been burping and swallowing all day as if he was going to puke.  I kept telling him I thought he might need to go home.  He kept telling me no.  He made it through... all the way to the end of 5th period.  And then he puked all over Jon...