Reasons to Call in Sick

In sixth grade health class I did not yet understand the meaning of a hangover. We had a test on substance abuse and one of the questions was whether it would be acceptable to call in sick the day after a night of heavy drinking if you were throwing up and had a headache. I said it was and my answer was deemed incorrect. I raised my hand to argue the point in class. If you were throwing up and incapable of going to work, what did it matter how you got sick? It's not like you're forbidden to call in sick after shaking some obviously sick guy's hand and then putting your hand in your mouth moments after. I was pretty good at arguing in middle school, but that was one I lost. Though, knowing several health teachers now, I bet my health class teacher secretely agreed with me back then.